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Finding the Fourth Proportional to 626,770.91, 864,964.53 and 354,833.25

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Solution

The fourth proportional to 626,770.91, 864,964.53 and 354,833.25 is: 489,681.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,770.91 : 864,964.53 = 354,833.25 : x
  2. Step 2: Convert to fraction form
    626,770.91/864,964.53 = 354,833.25/x
  3. Step 3: Cross multiply
    626,770.91x = 864,964.53 × 354,833.25
  4. Step 4: Simplify right side
    626,770.91x = 306,918,175,314.62
  5. Step 5: Solve for x
    x = 306,918,175,314.62/626,770.91
  6. Step 6: Final answer
    x = 489,681.59

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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.