Home / 813,984.50-1,123,298.62-451,463.88

Finding the Fourth Proportional to 813,984.50, 1,123,298.62 and 451,463.88

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Solution

The fourth proportional to 813,984.50, 1,123,298.62 and 451,463.88 is: 623,020.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,984.50 : 1,123,298.62 = 451,463.88 : x
  2. Step 2: Convert to fraction form
    813,984.50/1,123,298.62 = 451,463.88/x
  3. Step 3: Cross multiply
    813,984.50x = 1,123,298.62 × 451,463.88
  4. Step 4: Simplify right side
    813,984.50x = 507,128,753,383.85
  5. Step 5: Solve for x
    x = 507,128,753,383.85/813,984.50
  6. Step 6: Final answer
    x = 623,020.16

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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.