Home / 721,685.70-1,082,528.55-607,524.30

Finding the Fourth Proportional to 721,685.70, 1,082,528.55 and 607,524.30

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Solution

The fourth proportional to 721,685.70, 1,082,528.55 and 607,524.30 is: 911,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,685.70 : 1,082,528.55 = 607,524.30 : x
  2. Step 2: Convert to fraction form
    721,685.70/1,082,528.55 = 607,524.30/x
  3. Step 3: Cross multiply
    721,685.70x = 1,082,528.55 × 607,524.30
  4. Step 4: Simplify right side
    721,685.70x = 657,662,399,568.77
  5. Step 5: Solve for x
    x = 657,662,399,568.77/721,685.70
  6. Step 6: Final answer
    x = 911,286.45

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Half scale
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Double scale
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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.