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Finding the Fourth Proportional to 607,279, 911,473.98 and 307,966.12

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Solution

The fourth proportional to 607,279, 911,473.98 and 307,966.12 is: 462,230.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,279 : 911,473.98 = 307,966.12 : x
  2. Step 2: Convert to fraction form
    607,279/911,473.98 = 307,966.12/x
  3. Step 3: Cross multiply
    607,279x = 911,473.98 × 307,966.12
  4. Step 4: Simplify right side
    607,279x = 280,703,105,101.56
  5. Step 5: Solve for x
    x = 280,703,105,101.56/607,279
  6. Step 6: Final answer
    x = 462,230.88

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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.