Home / 724,591.20-1,086,886.80-457,485.60

Finding the Fourth Proportional to 724,591.20, 1,086,886.80 and 457,485.60

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Solution

The fourth proportional to 724,591.20, 1,086,886.80 and 457,485.60 is: 686,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,591.20 : 1,086,886.80 = 457,485.60 : x
  2. Step 2: Convert to fraction form
    724,591.20/1,086,886.80 = 457,485.60/x
  3. Step 3: Cross multiply
    724,591.20x = 1,086,886.80 × 457,485.60
  4. Step 4: Simplify right side
    724,591.20x = 497,235,059,830.08
  5. Step 5: Solve for x
    x = 497,235,059,830.08/724,591.20
  6. Step 6: Final answer
    x = 686,228.40

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Similar ratio
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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.