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Finding the Fourth Proportional to 573,464.34, 791,287.65 and 318,808.98

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Solution

The fourth proportional to 573,464.34, 791,287.65 and 318,808.98 is: 439,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,464.34 : 791,287.65 = 318,808.98 : x
  2. Step 2: Convert to fraction form
    573,464.34/791,287.65 = 318,808.98/x
  3. Step 3: Cross multiply
    573,464.34x = 791,287.65 × 318,808.98
  4. Step 4: Simplify right side
    573,464.34x = 252,269,608,583.10
  5. Step 5: Solve for x
    x = 252,269,608,583.10/573,464.34
  6. Step 6: Final answer
    x = 439,904.61

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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.