Home / 826,731.01-1,239,613.86-320,700.69

Finding the Fourth Proportional to 826,731.01, 1,239,613.86 and 320,700.69

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Solution

The fourth proportional to 826,731.01, 1,239,613.86 and 320,700.69 is: 480,863.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,731.01 : 1,239,613.86 = 320,700.69 : x
  2. Step 2: Convert to fraction form
    826,731.01/1,239,613.86 = 320,700.69/x
  3. Step 3: Cross multiply
    826,731.01x = 1,239,613.86 × 320,700.69
  4. Step 4: Simplify right side
    826,731.01x = 397,545,020,235.56
  5. Step 5: Solve for x
    x = 397,545,020,235.56/826,731.01
  6. Step 6: Final answer
    x = 480,863.81

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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.