Home / 1,120,650.40-1,679,809.20-614,432.80

Finding the Fourth Proportional to 1,120,650.40, 1,679,809.20 and 614,432.80

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Solution

The fourth proportional to 1,120,650.40, 1,679,809.20 and 614,432.80 is: 921,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,650.40 : 1,679,809.20 = 614,432.80 : x
  2. Step 2: Convert to fraction form
    1,120,650.40/1,679,809.20 = 614,432.80/x
  3. Step 3: Cross multiply
    1,120,650.40x = 1,679,809.20 × 614,432.80
  4. Step 4: Simplify right side
    1,120,650.40x = 1,032,129,870,221.76
  5. Step 5: Solve for x
    x = 1,032,129,870,221.76/1,120,650.40
  6. Step 6: Final answer
    x = 921,009.68

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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.