Home / 724,133.70-1,086,200.55-459,069.30

Finding the Fourth Proportional to 724,133.70, 1,086,200.55 and 459,069.30

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Solution

The fourth proportional to 724,133.70, 1,086,200.55 and 459,069.30 is: 688,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,133.70 : 1,086,200.55 = 459,069.30 : x
  2. Step 2: Convert to fraction form
    724,133.70/1,086,200.55 = 459,069.30/x
  3. Step 3: Cross multiply
    724,133.70x = 1,086,200.55 × 459,069.30
  4. Step 4: Simplify right side
    724,133.70x = 498,641,326,148.12
  5. Step 5: Solve for x
    x = 498,641,326,148.12/724,133.70
  6. Step 6: Final answer
    x = 688,603.95

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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.