Home / 826,730.64-1,239,613.30-320,700.31

Finding the Fourth Proportional to 826,730.64, 1,239,613.30 and 320,700.31

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Solution

The fourth proportional to 826,730.64, 1,239,613.30 and 320,700.31 is: 480,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,730.64 : 1,239,613.30 = 320,700.31 : x
  2. Step 2: Convert to fraction form
    826,730.64/1,239,613.30 = 320,700.31/x
  3. Step 3: Cross multiply
    826,730.64x = 1,239,613.30 × 320,700.31
  4. Step 4: Simplify right side
    826,730.64x = 397,544,373,188.31
  5. Step 5: Solve for x
    x = 397,544,373,188.31/826,730.64
  6. Step 6: Final answer
    x = 480,863.24

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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.