Home / 782,022.40-1,174,459.20-684,044.80

Finding the Fourth Proportional to 782,022.40, 1,174,459.20 and 684,044.80

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Solution

The fourth proportional to 782,022.40, 1,174,459.20 and 684,044.80 is: 1,027,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,022.40 : 1,174,459.20 = 684,044.80 : x
  2. Step 2: Convert to fraction form
    782,022.40/1,174,459.20 = 684,044.80/x
  3. Step 3: Cross multiply
    782,022.40x = 1,174,459.20 × 684,044.80
  4. Step 4: Simplify right side
    782,022.40x = 803,382,708,572.16
  5. Step 5: Solve for x
    x = 803,382,708,572.16/782,022.40
  6. Step 6: Final answer
    x = 1,027,314.19

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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.