Home / 440,573.68-659,835.87-428,451.85

Finding the Fourth Proportional to 440,573.68, 659,835.87 and 428,451.85

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Solution

The fourth proportional to 440,573.68, 659,835.87 and 428,451.85 is: 641,681.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,573.68 : 659,835.87 = 428,451.85 : x
  2. Step 2: Convert to fraction form
    440,573.68/659,835.87 = 428,451.85/x
  3. Step 3: Cross multiply
    440,573.68x = 659,835.87 × 428,451.85
  4. Step 4: Simplify right side
    440,573.68x = 282,707,899,197.86
  5. Step 5: Solve for x
    x = 282,707,899,197.86/440,573.68
  6. Step 6: Final answer
    x = 641,681.32

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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.