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Finding the Fourth Proportional to 542,422.76, 812,715.56 and 328,544.33

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Solution

The fourth proportional to 542,422.76, 812,715.56 and 328,544.33 is: 492,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,422.76 : 812,715.56 = 328,544.33 : x
  2. Step 2: Convert to fraction form
    542,422.76/812,715.56 = 328,544.33/x
  3. Step 3: Cross multiply
    542,422.76x = 812,715.56 × 328,544.33
  4. Step 4: Simplify right side
    542,422.76x = 267,013,087,498.05
  5. Step 5: Solve for x
    x = 267,013,087,498.05/542,422.76
  6. Step 6: Final answer
    x = 492,260.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.