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Finding the Fourth Proportional to 410,650.80, 615,116.95 and 330,254.18

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Solution

The fourth proportional to 410,650.80, 615,116.95 and 330,254.18 is: 494,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,650.80 : 615,116.95 = 330,254.18 : x
  2. Step 2: Convert to fraction form
    410,650.80/615,116.95 = 330,254.18/x
  3. Step 3: Cross multiply
    410,650.80x = 615,116.95 × 330,254.18
  4. Step 4: Simplify right side
    410,650.80x = 203,144,943,485.16
  5. Step 5: Solve for x
    x = 203,144,943,485.16/410,650.80
  6. Step 6: Final answer
    x = 494,690.24

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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.