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Finding the Fourth Proportional to 612,041.80, 916,248.30 and 454,966.60

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Solution

The fourth proportional to 612,041.80, 916,248.30 and 454,966.60 is: 681,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,041.80 : 916,248.30 = 454,966.60 : x
  2. Step 2: Convert to fraction form
    612,041.80/916,248.30 = 454,966.60/x
  3. Step 3: Cross multiply
    612,041.80x = 916,248.30 × 454,966.60
  4. Step 4: Simplify right side
    612,041.80x = 416,862,373,806.78
  5. Step 5: Solve for x
    x = 416,862,373,806.78/612,041.80
  6. Step 6: Final answer
    x = 681,101.15

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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.