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Finding the Fourth Proportional to 433,617.68, 650,426.52 and 285,839.12

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Solution

The fourth proportional to 433,617.68, 650,426.52 and 285,839.12 is: 428,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,617.68 : 650,426.52 = 285,839.12 : x
  2. Step 2: Convert to fraction form
    433,617.68/650,426.52 = 285,839.12/x
  3. Step 3: Cross multiply
    433,617.68x = 650,426.52 × 285,839.12
  4. Step 4: Simplify right side
    433,617.68x = 185,917,344,101.46
  5. Step 5: Solve for x
    x = 185,917,344,101.46/433,617.68
  6. Step 6: Final answer
    x = 428,758.68

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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.