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Finding the Fourth Proportional to 436,407.60, 654,935.88 and 324,348.72

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Solution

The fourth proportional to 436,407.60, 654,935.88 and 324,348.72 is: 486,764.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,407.60 : 654,935.88 = 324,348.72 : x
  2. Step 2: Convert to fraction form
    436,407.60/654,935.88 = 324,348.72/x
  3. Step 3: Cross multiply
    436,407.60x = 654,935.88 × 324,348.72
  4. Step 4: Simplify right side
    436,407.60x = 212,427,614,360.07
  5. Step 5: Solve for x
    x = 212,427,614,360.07/436,407.60
  6. Step 6: Final answer
    x = 486,764.24

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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.