Home / 725,520.25-1,001,234.96-403,243.93

Finding the Fourth Proportional to 725,520.25, 1,001,234.96 and 403,243.93

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Solution

The fourth proportional to 725,520.25, 1,001,234.96 and 403,243.93 is: 556,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,520.25 : 1,001,234.96 = 403,243.93 : x
  2. Step 2: Convert to fraction form
    725,520.25/1,001,234.96 = 403,243.93/x
  3. Step 3: Cross multiply
    725,520.25x = 1,001,234.96 × 403,243.93
  4. Step 4: Simplify right side
    725,520.25x = 403,741,920,123.79
  5. Step 5: Solve for x
    x = 403,741,920,123.79/725,520.25
  6. Step 6: Final answer
    x = 556,486.08

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