Home / 781,988.73-1,079,052.16-450,840.95

Finding the Fourth Proportional to 781,988.73, 1,079,052.16 and 450,840.95

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Solution

The fourth proportional to 781,988.73, 1,079,052.16 and 450,840.95 is: 622,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,988.73 : 1,079,052.16 = 450,840.95 : x
  2. Step 2: Convert to fraction form
    781,988.73/1,079,052.16 = 450,840.95/x
  3. Step 3: Cross multiply
    781,988.73x = 1,079,052.16 × 450,840.95
  4. Step 4: Simplify right side
    781,988.73x = 486,480,894,980.54
  5. Step 5: Solve for x
    x = 486,480,894,980.54/781,988.73
  6. Step 6: Final answer
    x = 622,107.30

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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.