Home / 724,684.46-1,000,156.82-438,206.60

Finding the Fourth Proportional to 724,684.46, 1,000,156.82 and 438,206.60

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Solution

The fourth proportional to 724,684.46, 1,000,156.82 and 438,206.60 is: 604,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,684.46 : 1,000,156.82 = 438,206.60 : x
  2. Step 2: Convert to fraction form
    724,684.46/1,000,156.82 = 438,206.60/x
  3. Step 3: Cross multiply
    724,684.46x = 1,000,156.82 × 438,206.60
  4. Step 4: Simplify right side
    724,684.46x = 438,275,312,367.20
  5. Step 5: Solve for x
    x = 438,275,312,367.20/724,684.46
  6. Step 6: Final answer
    x = 604,780.89

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.