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Finding the Fourth Proportional to 607,393.76, 911,646.84 and 308,081.12

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Solution

The fourth proportional to 607,393.76, 911,646.84 and 308,081.12 is: 462,403.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,393.76 : 911,646.84 = 308,081.12 : x
  2. Step 2: Convert to fraction form
    607,393.76/911,646.84 = 308,081.12/x
  3. Step 3: Cross multiply
    607,393.76x = 911,646.84 × 308,081.12
  4. Step 4: Simplify right side
    607,393.76x = 280,861,179,511.66
  5. Step 5: Solve for x
    x = 280,861,179,511.66/607,393.76
  6. Step 6: Final answer
    x = 462,403.79

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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.