Home / 1,272,360-1,755,860.45-728,504.13

Finding the Fourth Proportional to 1,272,360, 1,755,860.45 and 728,504.13

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Solution

The fourth proportional to 1,272,360, 1,755,860.45 and 728,504.13 is: 1,005,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,360 : 1,755,860.45 = 728,504.13 : x
  2. Step 2: Convert to fraction form
    1,272,360/1,755,860.45 = 728,504.13/x
  3. Step 3: Cross multiply
    1,272,360x = 1,755,860.45 × 728,504.13
  4. Step 4: Simplify right side
    1,272,360x = 1,279,151,585,886.14
  5. Step 5: Solve for x
    x = 1,279,151,585,886.14/1,272,360
  6. Step 6: Final answer
    x = 1,005,337.79

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1.5x scale

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.