Home / 1,216,254.52-1,678,152.75-726,128.64

Finding the Fourth Proportional to 1,216,254.52, 1,678,152.75 and 726,128.64

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Solution

The fourth proportional to 1,216,254.52, 1,678,152.75 and 726,128.64 is: 1,001,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,254.52 : 1,678,152.75 = 726,128.64 : x
  2. Step 2: Convert to fraction form
    1,216,254.52/1,678,152.75 = 726,128.64/x
  3. Step 3: Cross multiply
    1,216,254.52x = 1,678,152.75 × 726,128.64
  4. Step 4: Simplify right side
    1,216,254.52x = 1,218,554,765,679.00
  5. Step 5: Solve for x
    x = 1,218,554,765,679.00/1,216,254.52
  6. Step 6: Final answer
    x = 1,001,891.26

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