Home / 687,757.40-1,031,636.10-501,133.40

Finding the Fourth Proportional to 687,757.40, 1,031,636.10 and 501,133.40

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Solution

The fourth proportional to 687,757.40, 1,031,636.10 and 501,133.40 is: 751,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,757.40 : 1,031,636.10 = 501,133.40 : x
  2. Step 2: Convert to fraction form
    687,757.40/1,031,636.10 = 501,133.40/x
  3. Step 3: Cross multiply
    687,757.40x = 1,031,636.10 × 501,133.40
  4. Step 4: Simplify right side
    687,757.40x = 516,987,306,355.74
  5. Step 5: Solve for x
    x = 516,987,306,355.74/687,757.40
  6. Step 6: Final answer
    x = 751,700.10

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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.