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Finding the Fourth Proportional to 548,634.30, 822,951.45 and 545,135.10

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Solution

The fourth proportional to 548,634.30, 822,951.45 and 545,135.10 is: 817,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,634.30 : 822,951.45 = 545,135.10 : x
  2. Step 2: Convert to fraction form
    548,634.30/822,951.45 = 545,135.10/x
  3. Step 3: Cross multiply
    548,634.30x = 822,951.45 × 545,135.10
  4. Step 4: Simplify right side
    548,634.30x = 448,619,720,990.90
  5. Step 5: Solve for x
    x = 448,619,720,990.90/548,634.30
  6. Step 6: Final answer
    x = 817,702.65

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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.