Home / 769,421.40-1,154,132.10-732,679.80

Finding the Fourth Proportional to 769,421.40, 1,154,132.10 and 732,679.80

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Solution

The fourth proportional to 769,421.40, 1,154,132.10 and 732,679.80 is: 1,099,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,421.40 : 1,154,132.10 = 732,679.80 : x
  2. Step 2: Convert to fraction form
    769,421.40/1,154,132.10 = 732,679.80/x
  3. Step 3: Cross multiply
    769,421.40x = 1,154,132.10 × 732,679.80
  4. Step 4: Simplify right side
    769,421.40x = 845,609,276,201.58
  5. Step 5: Solve for x
    x = 845,609,276,201.58/769,421.40
  6. Step 6: Final answer
    x = 1,099,019.70

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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.