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Finding the Fourth Proportional to 615,279.66, 849,086.10 and 339,637.68

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Solution

The fourth proportional to 615,279.66, 849,086.10 and 339,637.68 is: 468,700.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,279.66 : 849,086.10 = 339,637.68 : x
  2. Step 2: Convert to fraction form
    615,279.66/849,086.10 = 339,637.68/x
  3. Step 3: Cross multiply
    615,279.66x = 849,086.10 × 339,637.68
  4. Step 4: Simplify right side
    615,279.66x = 288,381,633,124.25
  5. Step 5: Solve for x
    x = 288,381,633,124.25/615,279.66
  6. Step 6: Final answer
    x = 468,700.09

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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.