Home / 746,585.80-1,120,022.70-320,115.40

Finding the Fourth Proportional to 746,585.80, 1,120,022.70 and 320,115.40

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Solution

The fourth proportional to 746,585.80, 1,120,022.70 and 320,115.40 is: 480,234.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,585.80 : 1,120,022.70 = 320,115.40 : x
  2. Step 2: Convert to fraction form
    746,585.80/1,120,022.70 = 320,115.40/x
  3. Step 3: Cross multiply
    746,585.80x = 1,120,022.70 × 320,115.40
  4. Step 4: Simplify right side
    746,585.80x = 358,536,514,619.58
  5. Step 5: Solve for x
    x = 358,536,514,619.58/746,585.80
  6. Step 6: Final answer
    x = 480,234.84

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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.