Home / 813,842.50-1,123,116.15-451,281.64

Finding the Fourth Proportional to 813,842.50, 1,123,116.15 and 451,281.64

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Solution

The fourth proportional to 813,842.50, 1,123,116.15 and 451,281.64 is: 622,776.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,842.50 : 1,123,116.15 = 451,281.64 : x
  2. Step 2: Convert to fraction form
    813,842.50/1,123,116.15 = 451,281.64/x
  3. Step 3: Cross multiply
    813,842.50x = 1,123,116.15 × 451,281.64
  4. Step 4: Simplify right side
    813,842.50x = 506,841,698,082.49
  5. Step 5: Solve for x
    x = 506,841,698,082.49/813,842.50
  6. Step 6: Final answer
    x = 622,776.15

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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.