Home / 804,904.90-1,207,357.35-385,000.90

Finding the Fourth Proportional to 804,904.90, 1,207,357.35 and 385,000.90

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Solution

The fourth proportional to 804,904.90, 1,207,357.35 and 385,000.90 is: 577,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,904.90 : 1,207,357.35 = 385,000.90 : x
  2. Step 2: Convert to fraction form
    804,904.90/1,207,357.35 = 385,000.90/x
  3. Step 3: Cross multiply
    804,904.90x = 1,207,357.35 × 385,000.90
  4. Step 4: Simplify right side
    804,904.90x = 464,833,666,371.62
  5. Step 5: Solve for x
    x = 464,833,666,371.62/804,904.90
  6. Step 6: Final answer
    x = 577,501.35

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Half scale
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Double scale
Find fourth proportional to 804,905.90, 1,207,358.85 and 385,001.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.