Home / 461,127.40-691,632.78-145,616.20

Finding the Fourth Proportional to 461,127.40, 691,632.78 and 145,616.20

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Solution

The fourth proportional to 461,127.40, 691,632.78 and 145,616.20 is: 218,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,127.40 : 691,632.78 = 145,616.20 : x
  2. Step 2: Convert to fraction form
    461,127.40/691,632.78 = 145,616.20/x
  3. Step 3: Cross multiply
    461,127.40x = 691,632.78 × 145,616.20
  4. Step 4: Simplify right side
    461,127.40x = 100,712,937,219.04
  5. Step 5: Solve for x
    x = 100,712,937,219.04/461,127.40
  6. Step 6: Final answer
    x = 218,405.88

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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.