Home / 687,712.90-1,031,569.35-501,088.90

Finding the Fourth Proportional to 687,712.90, 1,031,569.35 and 501,088.90

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Solution

The fourth proportional to 687,712.90, 1,031,569.35 and 501,088.90 is: 751,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,712.90 : 1,031,569.35 = 501,088.90 : x
  2. Step 2: Convert to fraction form
    687,712.90/1,031,569.35 = 501,088.90/x
  3. Step 3: Cross multiply
    687,712.90x = 1,031,569.35 × 501,088.90
  4. Step 4: Simplify right side
    687,712.90x = 516,907,950,865.22
  5. Step 5: Solve for x
    x = 516,907,950,865.22/687,712.90
  6. Step 6: Final answer
    x = 751,633.35

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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.