Home / 667,667.52-1,000,890.24-288,350.40

Finding the Fourth Proportional to 667,667.52, 1,000,890.24 and 288,350.40

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Solution

The fourth proportional to 667,667.52, 1,000,890.24 and 288,350.40 is: 432,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,667.52 : 1,000,890.24 = 288,350.40 : x
  2. Step 2: Convert to fraction form
    667,667.52/1,000,890.24 = 288,350.40/x
  3. Step 3: Cross multiply
    667,667.52x = 1,000,890.24 × 288,350.40
  4. Step 4: Simplify right side
    667,667.52x = 288,607,101,060.10
  5. Step 5: Solve for x
    x = 288,607,101,060.10/667,667.52
  6. Step 6: Final answer
    x = 432,261.71

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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.