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Finding the Fourth Proportional to 469,532.47, 704,310.83 and 127,978.70

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Solution

The fourth proportional to 469,532.47, 704,310.83 and 127,978.70 is: 191,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,532.47 : 704,310.83 = 127,978.70 : x
  2. Step 2: Convert to fraction form
    469,532.47/704,310.83 = 127,978.70/x
  3. Step 3: Cross multiply
    469,532.47x = 704,310.83 × 127,978.70
  4. Step 4: Simplify right side
    469,532.47x = 90,136,784,419.32
  5. Step 5: Solve for x
    x = 90,136,784,419.32/469,532.47
  6. Step 6: Final answer
    x = 191,971.35

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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.