Home / 497,949.33-687,228.17-283,121.58

Finding the Fourth Proportional to 497,949.33, 687,228.17 and 283,121.58

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Solution

The fourth proportional to 497,949.33, 687,228.17 and 283,121.58 is: 390,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,949.33 : 687,228.17 = 283,121.58 : x
  2. Step 2: Convert to fraction form
    497,949.33/687,228.17 = 283,121.58/x
  3. Step 3: Cross multiply
    497,949.33x = 687,228.17 × 283,121.58
  4. Step 4: Simplify right side
    497,949.33x = 194,569,123,895.30
  5. Step 5: Solve for x
    x = 194,569,123,895.30/497,949.33
  6. Step 6: Final answer
    x = 390,740.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.