Home / 748,515.40-1,122,773.10-665,846.80

Finding the Fourth Proportional to 748,515.40, 1,122,773.10 and 665,846.80

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Solution

The fourth proportional to 748,515.40, 1,122,773.10 and 665,846.80 is: 998,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,515.40 : 1,122,773.10 = 665,846.80 : x
  2. Step 2: Convert to fraction form
    748,515.40/1,122,773.10 = 665,846.80/x
  3. Step 3: Cross multiply
    748,515.40x = 1,122,773.10 × 665,846.80
  4. Step 4: Simplify right side
    748,515.40x = 747,594,875,761.08
  5. Step 5: Solve for x
    x = 747,594,875,761.08/748,515.40
  6. Step 6: Final answer
    x = 998,770.20

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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.