Home / 1,272,366-1,755,868.74-728,510.16

Finding the Fourth Proportional to 1,272,366, 1,755,868.74 and 728,510.16

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Solution

The fourth proportional to 1,272,366, 1,755,868.74 and 728,510.16 is: 1,005,346.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,366 : 1,755,868.74 = 728,510.16 : x
  2. Step 2: Convert to fraction form
    1,272,366/1,755,868.74 = 728,510.16/x
  3. Step 3: Cross multiply
    1,272,366x = 1,755,868.74 × 728,510.16
  4. Step 4: Simplify right side
    1,272,366x = 1,279,168,216,716.40
  5. Step 5: Solve for x
    x = 1,279,168,216,716.40/1,272,366
  6. Step 6: Final answer
    x = 1,005,346.12

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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.