Home / 643,149.42-964,732.29-243,682.89

Finding the Fourth Proportional to 643,149.42, 964,732.29 and 243,682.89

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Solution

The fourth proportional to 643,149.42, 964,732.29 and 243,682.89 is: 365,527.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,149.42 : 964,732.29 = 243,682.89 : x
  2. Step 2: Convert to fraction form
    643,149.42/964,732.29 = 243,682.89/x
  3. Step 3: Cross multiply
    643,149.42x = 964,732.29 × 243,682.89
  4. Step 4: Simplify right side
    643,149.42x = 235,088,752,503.52
  5. Step 5: Solve for x
    x = 235,088,752,503.52/643,149.42
  6. Step 6: Final answer
    x = 365,527.43

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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.