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Finding the Fourth Proportional to 615,881.82, 850,732.92 and 495,476.58

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Solution

The fourth proportional to 615,881.82, 850,732.92 and 495,476.58 is: 684,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,881.82 : 850,732.92 = 495,476.58 : x
  2. Step 2: Convert to fraction form
    615,881.82/850,732.92 = 495,476.58/x
  3. Step 3: Cross multiply
    615,881.82x = 850,732.92 × 495,476.58
  4. Step 4: Simplify right side
    615,881.82x = 421,518,237,695.01
  5. Step 5: Solve for x
    x = 421,518,237,695.01/615,881.82
  6. Step 6: Final answer
    x = 684,414.16

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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.