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Finding the Fourth Proportional to 480,877.32, 663,660 and 276,935.88

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Solution

The fourth proportional to 480,877.32, 663,660 and 276,935.88 is: 382,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,877.32 : 663,660 = 276,935.88 : x
  2. Step 2: Convert to fraction form
    480,877.32/663,660 = 276,935.88/x
  3. Step 3: Cross multiply
    480,877.32x = 663,660 × 276,935.88
  4. Step 4: Simplify right side
    480,877.32x = 183,791,266,120.80
  5. Step 5: Solve for x
    x = 183,791,266,120.80/480,877.32
  6. Step 6: Final answer
    x = 382,199.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.