Home / 689,627.70-1,034,441.55-479,675.70

Finding the Fourth Proportional to 689,627.70, 1,034,441.55 and 479,675.70

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Solution

The fourth proportional to 689,627.70, 1,034,441.55 and 479,675.70 is: 719,513.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,627.70 : 1,034,441.55 = 479,675.70 : x
  2. Step 2: Convert to fraction form
    689,627.70/1,034,441.55 = 479,675.70/x
  3. Step 3: Cross multiply
    689,627.70x = 1,034,441.55 × 479,675.70
  4. Step 4: Simplify right side
    689,627.70x = 496,196,474,605.34
  5. Step 5: Solve for x
    x = 496,196,474,605.34/689,627.70
  6. Step 6: Final answer
    x = 719,513.55

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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.