Home / 1,272,366.50-1,755,869.43-728,510.66

Finding the Fourth Proportional to 1,272,366.50, 1,755,869.43 and 728,510.66

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Solution

The fourth proportional to 1,272,366.50, 1,755,869.43 and 728,510.66 is: 1,005,346.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,366.50 : 1,755,869.43 = 728,510.66 : x
  2. Step 2: Convert to fraction form
    1,272,366.50/1,755,869.43 = 728,510.66/x
  3. Step 3: Cross multiply
    1,272,366.50x = 1,755,869.43 × 728,510.66
  4. Step 4: Simplify right side
    1,272,366.50x = 1,279,169,597,323.12
  5. Step 5: Solve for x
    x = 1,279,169,597,323.12/1,272,366.50
  6. Step 6: Final answer
    x = 1,005,346.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.