Home / 804,959.35-1,207,439.03-431,711.35

Finding the Fourth Proportional to 804,959.35, 1,207,439.03 and 431,711.35

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Solution

The fourth proportional to 804,959.35, 1,207,439.03 and 431,711.35 is: 647,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,959.35 : 1,207,439.03 = 431,711.35 : x
  2. Step 2: Convert to fraction form
    804,959.35/1,207,439.03 = 431,711.35/x
  3. Step 3: Cross multiply
    804,959.35x = 1,207,439.03 × 431,711.35
  4. Step 4: Simplify right side
    804,959.35x = 521,265,133,683.99
  5. Step 5: Solve for x
    x = 521,265,133,683.99/804,959.35
  6. Step 6: Final answer
    x = 647,567.03

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Half scale
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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.