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Finding the Fourth Proportional to 650,475.16, 897,683.52 and 402,171.28

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Solution

The fourth proportional to 650,475.16, 897,683.52 and 402,171.28 is: 555,013.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,475.16 : 897,683.52 = 402,171.28 : x
  2. Step 2: Convert to fraction form
    650,475.16/897,683.52 = 402,171.28/x
  3. Step 3: Cross multiply
    650,475.16x = 897,683.52 × 402,171.28
  4. Step 4: Simplify right side
    650,475.16x = 361,022,530,273.31
  5. Step 5: Solve for x
    x = 361,022,530,273.31/650,475.16
  6. Step 6: Final answer
    x = 555,013.55

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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.