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Finding the Fourth Proportional to 469,656, 648,125.28 and 268,456.32

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Solution

The fourth proportional to 469,656, 648,125.28 and 268,456.32 is: 370,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,656 : 648,125.28 = 268,456.32 : x
  2. Step 2: Convert to fraction form
    469,656/648,125.28 = 268,456.32/x
  3. Step 3: Cross multiply
    469,656x = 648,125.28 × 268,456.32
  4. Step 4: Simplify right side
    469,656x = 173,993,327,567.77
  5. Step 5: Solve for x
    x = 173,993,327,567.77/469,656
  6. Step 6: Final answer
    x = 370,469.72

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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.