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Finding the Fourth Proportional to 460,448.96, 690,686.40 and 128,024.96

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Solution

The fourth proportional to 460,448.96, 690,686.40 and 128,024.96 is: 192,041.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,448.96 : 690,686.40 = 128,024.96 : x
  2. Step 2: Convert to fraction form
    460,448.96/690,686.40 = 128,024.96/x
  3. Step 3: Cross multiply
    460,448.96x = 690,686.40 × 128,024.96
  4. Step 4: Simplify right side
    460,448.96x = 88,425,098,732.54
  5. Step 5: Solve for x
    x = 88,425,098,732.54/460,448.96
  6. Step 6: Final answer
    x = 192,041.04

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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.