Home / 830,505.60-1,245,758.40-749,149.20

Finding the Fourth Proportional to 830,505.60, 1,245,758.40 and 749,149.20

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Solution

The fourth proportional to 830,505.60, 1,245,758.40 and 749,149.20 is: 1,123,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,505.60 : 1,245,758.40 = 749,149.20 : x
  2. Step 2: Convert to fraction form
    830,505.60/1,245,758.40 = 749,149.20/x
  3. Step 3: Cross multiply
    830,505.60x = 1,245,758.40 × 749,149.20
  4. Step 4: Simplify right side
    830,505.60x = 933,258,908,753.28
  5. Step 5: Solve for x
    x = 933,258,908,753.28/830,505.60
  6. Step 6: Final answer
    x = 1,123,723.80

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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.