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Finding the Fourth Proportional to 564,698.97, 847,071.54 and 143,985.78

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Solution

The fourth proportional to 564,698.97, 847,071.54 and 143,985.78 is: 215,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,698.97 : 847,071.54 = 143,985.78 : x
  2. Step 2: Convert to fraction form
    564,698.97/847,071.54 = 143,985.78/x
  3. Step 3: Cross multiply
    564,698.97x = 847,071.54 × 143,985.78
  4. Step 4: Simplify right side
    564,698.97x = 121,966,256,402.70
  5. Step 5: Solve for x
    x = 121,966,256,402.70/564,698.97
  6. Step 6: Final answer
    x = 215,984.56

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.