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Finding the Fourth Proportional to 443,301.60, 664,952.40 and 400,447.20

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Solution

The fourth proportional to 443,301.60, 664,952.40 and 400,447.20 is: 600,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,301.60 : 664,952.40 = 400,447.20 : x
  2. Step 2: Convert to fraction form
    443,301.60/664,952.40 = 400,447.20/x
  3. Step 3: Cross multiply
    443,301.60x = 664,952.40 × 400,447.20
  4. Step 4: Simplify right side
    443,301.60x = 266,278,326,713.28
  5. Step 5: Solve for x
    x = 266,278,326,713.28/443,301.60
  6. Step 6: Final answer
    x = 600,670.80

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1.5x scale

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.