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Finding the Fourth Proportional to 626,488.04, 864,553.14 and 354,551

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Solution

The fourth proportional to 626,488.04, 864,553.14 and 354,551 is: 489,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,488.04 : 864,553.14 = 354,551 : x
  2. Step 2: Convert to fraction form
    626,488.04/864,553.14 = 354,551/x
  3. Step 3: Cross multiply
    626,488.04x = 864,553.14 × 354,551
  4. Step 4: Simplify right side
    626,488.04x = 306,528,180,340.14
  5. Step 5: Solve for x
    x = 306,528,180,340.14/626,488.04
  6. Step 6: Final answer
    x = 489,280.18

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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.