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Finding the Fourth Proportional to 443,276.72, 611,306.64 and 352,930.92

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Solution

The fourth proportional to 443,276.72, 611,306.64 and 352,930.92 is: 486,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,276.72 : 611,306.64 = 352,930.92 : x
  2. Step 2: Convert to fraction form
    443,276.72/611,306.64 = 352,930.92/x
  3. Step 3: Cross multiply
    443,276.72x = 611,306.64 × 352,930.92
  4. Step 4: Simplify right side
    443,276.72x = 215,749,014,857.31
  5. Step 5: Solve for x
    x = 215,749,014,857.31/443,276.72
  6. Step 6: Final answer
    x = 486,714.07

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1.5x scale

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.