Home / 496,923.40-745,385.10-458,432.20

Finding the Fourth Proportional to 496,923.40, 745,385.10 and 458,432.20

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Solution

The fourth proportional to 496,923.40, 745,385.10 and 458,432.20 is: 687,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,923.40 : 745,385.10 = 458,432.20 : x
  2. Step 2: Convert to fraction form
    496,923.40/745,385.10 = 458,432.20/x
  3. Step 3: Cross multiply
    496,923.40x = 745,385.10 × 458,432.20
  4. Step 4: Simplify right side
    496,923.40x = 341,708,531,240.22
  5. Step 5: Solve for x
    x = 341,708,531,240.22/496,923.40
  6. Step 6: Final answer
    x = 687,648.30

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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.