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Finding the Fourth Proportional to 544,873.12, 817,804.08 and 278,817.44

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Solution

The fourth proportional to 544,873.12, 817,804.08 and 278,817.44 is: 418,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,873.12 : 817,804.08 = 278,817.44 : x
  2. Step 2: Convert to fraction form
    544,873.12/817,804.08 = 278,817.44/x
  3. Step 3: Cross multiply
    544,873.12x = 817,804.08 × 278,817.44
  4. Step 4: Simplify right side
    544,873.12x = 228,018,040,007.16
  5. Step 5: Solve for x
    x = 228,018,040,007.16/544,873.12
  6. Step 6: Final answer
    x = 418,479.15

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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.