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Finding the Fourth Proportional to 617,472.90, 852,152.13 and 345,572.10

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Solution

The fourth proportional to 617,472.90, 852,152.13 and 345,572.10 is: 476,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,472.90 : 852,152.13 = 345,572.10 : x
  2. Step 2: Convert to fraction form
    617,472.90/852,152.13 = 345,572.10/x
  3. Step 3: Cross multiply
    617,472.90x = 852,152.13 × 345,572.10
  4. Step 4: Simplify right side
    617,472.90x = 294,480,001,083.57
  5. Step 5: Solve for x
    x = 294,480,001,083.57/617,472.90
  6. Step 6: Final answer
    x = 476,911.62

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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.