Home / 687,447.77-1,031,167.56-373,897.58

Finding the Fourth Proportional to 687,447.77, 1,031,167.56 and 373,897.58

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Solution

The fourth proportional to 687,447.77, 1,031,167.56 and 373,897.58 is: 560,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,447.77 : 1,031,167.56 = 373,897.58 : x
  2. Step 2: Convert to fraction form
    687,447.77/1,031,167.56 = 373,897.58/x
  3. Step 3: Cross multiply
    687,447.77x = 1,031,167.56 × 373,897.58
  4. Step 4: Simplify right side
    687,447.77x = 385,551,053,389.02
  5. Step 5: Solve for x
    x = 385,551,053,389.02/687,447.77
  6. Step 6: Final answer
    x = 560,844.14

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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.