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Finding the Fourth Proportional to 669,339.33, 924,448.79 and 451,171.73

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Solution

The fourth proportional to 669,339.33, 924,448.79 and 451,171.73 is: 623,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,339.33 : 924,448.79 = 451,171.73 : x
  2. Step 2: Convert to fraction form
    669,339.33/924,448.79 = 451,171.73/x
  3. Step 3: Cross multiply
    669,339.33x = 924,448.79 × 451,171.73
  4. Step 4: Simplify right side
    669,339.33x = 417,085,154,130.53
  5. Step 5: Solve for x
    x = 417,085,154,130.53/669,339.33
  6. Step 6: Final answer
    x = 623,129.61

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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.