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Finding the Fourth Proportional to 615,696.20, 923,641.50 and 260,712.44

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Solution

The fourth proportional to 615,696.20, 923,641.50 and 260,712.44 is: 391,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,696.20 : 923,641.50 = 260,712.44 : x
  2. Step 2: Convert to fraction form
    615,696.20/923,641.50 = 260,712.44/x
  3. Step 3: Cross multiply
    615,696.20x = 923,641.50 × 260,712.44
  4. Step 4: Simplify right side
    615,696.20x = 240,804,829,150.26
  5. Step 5: Solve for x
    x = 240,804,829,150.26/615,696.20
  6. Step 6: Final answer
    x = 391,109.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.