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Finding the Fourth Proportional to 536,680.60, 805,020.90 and 347,723.80

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Solution

The fourth proportional to 536,680.60, 805,020.90 and 347,723.80 is: 521,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,680.60 : 805,020.90 = 347,723.80 : x
  2. Step 2: Convert to fraction form
    536,680.60/805,020.90 = 347,723.80/x
  3. Step 3: Cross multiply
    536,680.60x = 805,020.90 × 347,723.80
  4. Step 4: Simplify right side
    536,680.60x = 279,924,926,427.42
  5. Step 5: Solve for x
    x = 279,924,926,427.42/536,680.60
  6. Step 6: Final answer
    x = 521,585.70

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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.