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Finding the Fourth Proportional to 501,125.70, 751,688.55 and 389,151.30

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Solution

The fourth proportional to 501,125.70, 751,688.55 and 389,151.30 is: 583,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,125.70 : 751,688.55 = 389,151.30 : x
  2. Step 2: Convert to fraction form
    501,125.70/751,688.55 = 389,151.30/x
  3. Step 3: Cross multiply
    501,125.70x = 751,688.55 × 389,151.30
  4. Step 4: Simplify right side
    501,125.70x = 292,520,576,427.62
  5. Step 5: Solve for x
    x = 292,520,576,427.62/501,125.70
  6. Step 6: Final answer
    x = 583,726.95

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Similar ratio
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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.