Home / 804,905.80-1,207,358.70-243,867.40

Finding the Fourth Proportional to 804,905.80, 1,207,358.70 and 243,867.40

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Solution

The fourth proportional to 804,905.80, 1,207,358.70 and 243,867.40 is: 365,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,905.80 : 1,207,358.70 = 243,867.40 : x
  2. Step 2: Convert to fraction form
    804,905.80/1,207,358.70 = 243,867.40/x
  3. Step 3: Cross multiply
    804,905.80x = 1,207,358.70 × 243,867.40
  4. Step 4: Simplify right side
    804,905.80x = 294,435,427,036.38
  5. Step 5: Solve for x
    x = 294,435,427,036.38/804,905.80
  6. Step 6: Final answer
    x = 365,801.10

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Double scale
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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.