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Finding the Fourth Proportional to 479,613.76, 661,858.90 and 264,748.30

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Solution

The fourth proportional to 479,613.76, 661,858.90 and 264,748.30 is: 365,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,613.76 : 661,858.90 = 264,748.30 : x
  2. Step 2: Convert to fraction form
    479,613.76/661,858.90 = 264,748.30/x
  3. Step 3: Cross multiply
    479,613.76x = 661,858.90 × 264,748.30
  4. Step 4: Simplify right side
    479,613.76x = 175,226,016,298.35
  5. Step 5: Solve for x
    x = 175,226,016,298.35/479,613.76
  6. Step 6: Final answer
    x = 365,348.19

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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.