Home / 676,141.28-933,122.40-374,354.72

Finding the Fourth Proportional to 676,141.28, 933,122.40 and 374,354.72

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Solution

The fourth proportional to 676,141.28, 933,122.40 and 374,354.72 is: 516,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,141.28 : 933,122.40 = 374,354.72 : x
  2. Step 2: Convert to fraction form
    676,141.28/933,122.40 = 374,354.72/x
  3. Step 3: Cross multiply
    676,141.28x = 933,122.40 × 374,354.72
  4. Step 4: Simplify right side
    676,141.28x = 349,318,774,777.73
  5. Step 5: Solve for x
    x = 349,318,774,777.73/676,141.28
  6. Step 6: Final answer
    x = 516,635.78

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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.