Home / 1,126,761.20-1,690,252.20-328,050.80

Finding the Fourth Proportional to 1,126,761.20, 1,690,252.20 and 328,050.80

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Solution

The fourth proportional to 1,126,761.20, 1,690,252.20 and 328,050.80 is: 492,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,761.20 : 1,690,252.20 = 328,050.80 : x
  2. Step 2: Convert to fraction form
    1,126,761.20/1,690,252.20 = 328,050.80/x
  3. Step 3: Cross multiply
    1,126,761.20x = 1,690,252.20 × 328,050.80
  4. Step 4: Simplify right side
    1,126,761.20x = 554,488,586,411.76
  5. Step 5: Solve for x
    x = 554,488,586,411.76/1,126,761.20
  6. Step 6: Final answer
    x = 492,108.34

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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.