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Finding the Fourth Proportional to 626,214.65, 864,219.02 and 354,282.47

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Solution

The fourth proportional to 626,214.65, 864,219.02 and 354,282.47 is: 488,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,214.65 : 864,219.02 = 354,282.47 : x
  2. Step 2: Convert to fraction form
    626,214.65/864,219.02 = 354,282.47/x
  3. Step 3: Cross multiply
    626,214.65x = 864,219.02 × 354,282.47
  4. Step 4: Simplify right side
    626,214.65x = 306,177,646,648.62
  5. Step 5: Solve for x
    x = 306,177,646,648.62/626,214.65
  6. Step 6: Final answer
    x = 488,934.02

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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.