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Finding the Fourth Proportional to 663,448.32, 995,557.95 and 279,169.02

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Solution

The fourth proportional to 663,448.32, 995,557.95 and 279,169.02 is: 418,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,448.32 : 995,557.95 = 279,169.02 : x
  2. Step 2: Convert to fraction form
    663,448.32/995,557.95 = 279,169.02/x
  3. Step 3: Cross multiply
    663,448.32x = 995,557.95 × 279,169.02
  4. Step 4: Simplify right side
    663,448.32x = 277,928,937,254.71
  5. Step 5: Solve for x
    x = 277,928,937,254.71/663,448.32
  6. Step 6: Final answer
    x = 418,915.73

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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.