Home / 721,216.80-1,081,922.40-248,047.20

Finding the Fourth Proportional to 721,216.80, 1,081,922.40 and 248,047.20

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Solution

The fourth proportional to 721,216.80, 1,081,922.40 and 248,047.20 is: 372,104.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,216.80 : 1,081,922.40 = 248,047.20 : x
  2. Step 2: Convert to fraction form
    721,216.80/1,081,922.40 = 248,047.20/x
  3. Step 3: Cross multiply
    721,216.80x = 1,081,922.40 × 248,047.20
  4. Step 4: Simplify right side
    721,216.80x = 268,367,821,937.28
  5. Step 5: Solve for x
    x = 268,367,821,937.28/721,216.80
  6. Step 6: Final answer
    x = 372,104.23

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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.