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Finding the Fourth Proportional to 469,387, 704,121.78 and 132,430.24

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Solution

The fourth proportional to 469,387, 704,121.78 and 132,430.24 is: 198,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,387 : 704,121.78 = 132,430.24 : x
  2. Step 2: Convert to fraction form
    469,387/704,121.78 = 132,430.24/x
  3. Step 3: Cross multiply
    469,387x = 704,121.78 × 132,430.24
  4. Step 4: Simplify right side
    469,387x = 93,247,016,314.63
  5. Step 5: Solve for x
    x = 93,247,016,314.63/469,387
  6. Step 6: Final answer
    x = 198,657.01

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1.5x scale

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.