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Finding the Fourth Proportional to 407,374.20, 611,060.76 and 229,800.60

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Solution

The fourth proportional to 407,374.20, 611,060.76 and 229,800.60 is: 344,700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,374.20 : 611,060.76 = 229,800.60 : x
  2. Step 2: Convert to fraction form
    407,374.20/611,060.76 = 229,800.60/x
  3. Step 3: Cross multiply
    407,374.20x = 611,060.76 × 229,800.60
  4. Step 4: Simplify right side
    407,374.20x = 140,422,129,284.46
  5. Step 5: Solve for x
    x = 140,422,129,284.46/407,374.20
  6. Step 6: Final answer
    x = 344,700.60

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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.