Home / 781,225.29-1,078,121.54-458,932.57

Finding the Fourth Proportional to 781,225.29, 1,078,121.54 and 458,932.57

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Solution

The fourth proportional to 781,225.29, 1,078,121.54 and 458,932.57 is: 633,344.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,225.29 : 1,078,121.54 = 458,932.57 : x
  2. Step 2: Convert to fraction form
    781,225.29/1,078,121.54 = 458,932.57/x
  3. Step 3: Cross multiply
    781,225.29x = 1,078,121.54 × 458,932.57
  4. Step 4: Simplify right side
    781,225.29x = 494,785,087,576.59
  5. Step 5: Solve for x
    x = 494,785,087,576.59/781,225.29
  6. Step 6: Final answer
    x = 633,344.94

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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.