Home / 1,272,382.61-1,755,302.70-1,127,336.22

Finding the Fourth Proportional to 1,272,382.61, 1,755,302.70 and 1,127,336.22

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Solution

The fourth proportional to 1,272,382.61, 1,755,302.70 and 1,127,336.22 is: 1,555,205.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,382.61 : 1,755,302.70 = 1,127,336.22 : x
  2. Step 2: Convert to fraction form
    1,272,382.61/1,755,302.70 = 1,127,336.22/x
  3. Step 3: Cross multiply
    1,272,382.61x = 1,755,302.70 × 1,127,336.22
  4. Step 4: Simplify right side
    1,272,382.61x = 1,978,816,310,773.79
  5. Step 5: Solve for x
    x = 1,978,816,310,773.79/1,272,382.61
  6. Step 6: Final answer
    x = 1,555,205.41

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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.