Home / 766,861.20-1,150,291.80-709,124.40

Finding the Fourth Proportional to 766,861.20, 1,150,291.80 and 709,124.40

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Solution

The fourth proportional to 766,861.20, 1,150,291.80 and 709,124.40 is: 1,063,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,861.20 : 1,150,291.80 = 709,124.40 : x
  2. Step 2: Convert to fraction form
    766,861.20/1,150,291.80 = 709,124.40/x
  3. Step 3: Cross multiply
    766,861.20x = 1,150,291.80 × 709,124.40
  4. Step 4: Simplify right side
    766,861.20x = 815,699,982,499.92
  5. Step 5: Solve for x
    x = 815,699,982,499.92/766,861.20
  6. Step 6: Final answer
    x = 1,063,686.60

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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.