Home / 440,574.68-659,837.37-428,452.85

Finding the Fourth Proportional to 440,574.68, 659,837.37 and 428,452.85

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Solution

The fourth proportional to 440,574.68, 659,837.37 and 428,452.85 is: 641,682.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,574.68 : 659,837.37 = 428,452.85 : x
  2. Step 2: Convert to fraction form
    440,574.68/659,837.37 = 428,452.85/x
  3. Step 3: Cross multiply
    440,574.68x = 659,837.37 × 428,452.85
  4. Step 4: Simplify right side
    440,574.68x = 282,709,201,713.00
  5. Step 5: Solve for x
    x = 282,709,201,713.00/440,574.68
  6. Step 6: Final answer
    x = 641,682.82

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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.