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Finding the Fourth Proportional to 607,123.72, 910,599.98 and 381,797.20

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Solution

The fourth proportional to 607,123.72, 910,599.98 and 381,797.20 is: 572,641.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,123.72 : 910,599.98 = 381,797.20 : x
  2. Step 2: Convert to fraction form
    607,123.72/910,599.98 = 381,797.20/x
  3. Step 3: Cross multiply
    607,123.72x = 910,599.98 × 381,797.20
  4. Step 4: Simplify right side
    607,123.72x = 347,664,522,684.06
  5. Step 5: Solve for x
    x = 347,664,522,684.06/607,123.72
  6. Step 6: Final answer
    x = 572,641.97

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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.