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Finding the Fourth Proportional to 615,276.64, 849,081.93 and 339,634.66

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Solution

The fourth proportional to 615,276.64, 849,081.93 and 339,634.66 is: 468,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,276.64 : 849,081.93 = 339,634.66 : x
  2. Step 2: Convert to fraction form
    615,276.64/849,081.93 = 339,634.66/x
  3. Step 3: Cross multiply
    615,276.64x = 849,081.93 × 339,634.66
  4. Step 4: Simplify right side
    615,276.64x = 288,377,649,609.37
  5. Step 5: Solve for x
    x = 288,377,649,609.37/615,276.64
  6. Step 6: Final answer
    x = 468,695.92

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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.