Home / 721,033.74-1,080,967.38-440,456.22

Finding the Fourth Proportional to 721,033.74, 1,080,967.38 and 440,456.22

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Solution

The fourth proportional to 721,033.74, 1,080,967.38 and 440,456.22 is: 660,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,033.74 : 1,080,967.38 = 440,456.22 : x
  2. Step 2: Convert to fraction form
    721,033.74/1,080,967.38 = 440,456.22/x
  3. Step 3: Cross multiply
    721,033.74x = 1,080,967.38 × 440,456.22
  4. Step 4: Simplify right side
    721,033.74x = 476,118,806,138.10
  5. Step 5: Solve for x
    x = 476,118,806,138.10/721,033.74
  6. Step 6: Final answer
    x = 660,328.05

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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.