Home / 721,034.74-1,080,968.88-440,457.22

Finding the Fourth Proportional to 721,034.74, 1,080,968.88 and 440,457.22

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Solution

The fourth proportional to 721,034.74, 1,080,968.88 and 440,457.22 is: 660,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,034.74 : 1,080,968.88 = 440,457.22 : x
  2. Step 2: Convert to fraction form
    721,034.74/1,080,968.88 = 440,457.22/x
  3. Step 3: Cross multiply
    721,034.74x = 1,080,968.88 × 440,457.22
  4. Step 4: Simplify right side
    721,034.74x = 476,120,547,791.31
  5. Step 5: Solve for x
    x = 476,120,547,791.31/721,034.74
  6. Step 6: Final answer
    x = 660,329.55

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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.