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Finding the Fourth Proportional to 370,414.80, 555,622.20 and 354,862.80

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Solution

The fourth proportional to 370,414.80, 555,622.20 and 354,862.80 is: 532,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,414.80 : 555,622.20 = 354,862.80 : x
  2. Step 2: Convert to fraction form
    370,414.80/555,622.20 = 354,862.80/x
  3. Step 3: Cross multiply
    370,414.80x = 555,622.20 × 354,862.80
  4. Step 4: Simplify right side
    370,414.80x = 197,169,649,634.16
  5. Step 5: Solve for x
    x = 197,169,649,634.16/370,414.80
  6. Step 6: Final answer
    x = 532,294.20

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