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Finding the Fourth Proportional to 544,521.80, 816,126.60 and 278,145.20

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Solution

The fourth proportional to 544,521.80, 816,126.60 and 278,145.20 is: 416,882.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,521.80 : 816,126.60 = 278,145.20 : x
  2. Step 2: Convert to fraction form
    544,521.80/816,126.60 = 278,145.20/x
  3. Step 3: Cross multiply
    544,521.80x = 816,126.60 × 278,145.20
  4. Step 4: Simplify right side
    544,521.80x = 227,001,696,382.32
  5. Step 5: Solve for x
    x = 227,001,696,382.32/544,521.80
  6. Step 6: Final answer
    x = 416,882.66

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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.