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Finding the Fourth Proportional to 544,859.88, 817,281.62 and 245,128.80

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Solution

The fourth proportional to 544,859.88, 817,281.62 and 245,128.80 is: 367,689.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,859.88 : 817,281.62 = 245,128.80 : x
  2. Step 2: Convert to fraction form
    544,859.88/817,281.62 = 245,128.80/x
  3. Step 3: Cross multiply
    544,859.88x = 817,281.62 × 245,128.80
  4. Step 4: Simplify right side
    544,859.88x = 200,339,258,073.43
  5. Step 5: Solve for x
    x = 200,339,258,073.43/544,859.88
  6. Step 6: Final answer
    x = 367,689.50

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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.