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Finding the Fourth Proportional to 713,951.19, 985,179.65 and 427,463.91

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Solution

The fourth proportional to 713,951.19, 985,179.65 and 427,463.91 is: 589,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,951.19 : 985,179.65 = 427,463.91 : x
  2. Step 2: Convert to fraction form
    713,951.19/985,179.65 = 427,463.91/x
  3. Step 3: Cross multiply
    713,951.19x = 985,179.65 × 427,463.91
  4. Step 4: Simplify right side
    713,951.19x = 421,128,743,104.11
  5. Step 5: Solve for x
    x = 421,128,743,104.11/713,951.19
  6. Step 6: Final answer
    x = 589,856.49

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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.