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Finding the Fourth Proportional to 708,927.60, 978,248.28 and 436,951.92

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Solution

The fourth proportional to 708,927.60, 978,248.28 and 436,951.92 is: 602,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,927.60 : 978,248.28 = 436,951.92 : x
  2. Step 2: Convert to fraction form
    708,927.60/978,248.28 = 436,951.92/x
  3. Step 3: Cross multiply
    708,927.60x = 978,248.28 × 436,951.92
  4. Step 4: Simplify right side
    708,927.60x = 427,447,464,182.70
  5. Step 5: Solve for x
    x = 427,447,464,182.70/708,927.60
  6. Step 6: Final answer
    x = 602,949.39

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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.