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Finding the Fourth Proportional to 615,883.82, 850,735.68 and 495,478.58

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Solution

The fourth proportional to 615,883.82, 850,735.68 and 495,478.58 is: 684,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,883.82 : 850,735.68 = 495,478.58 : x
  2. Step 2: Convert to fraction form
    615,883.82/850,735.68 = 495,478.58/x
  3. Step 3: Cross multiply
    615,883.82x = 850,735.68 × 495,478.58
  4. Step 4: Simplify right side
    615,883.82x = 421,521,306,681.73
  5. Step 5: Solve for x
    x = 421,521,306,681.73/615,883.82
  6. Step 6: Final answer
    x = 684,416.92

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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.