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Finding the Fourth Proportional to 615,678.11, 849,627.52 and 343,750.17

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Solution

The fourth proportional to 615,678.11, 849,627.52 and 343,750.17 is: 474,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,678.11 : 849,627.52 = 343,750.17 : x
  2. Step 2: Convert to fraction form
    615,678.11/849,627.52 = 343,750.17/x
  3. Step 3: Cross multiply
    615,678.11x = 849,627.52 × 343,750.17
  4. Step 4: Simplify right side
    615,678.11x = 292,059,604,436.68
  5. Step 5: Solve for x
    x = 292,059,604,436.68/615,678.11
  6. Step 6: Final answer
    x = 474,370.62

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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.