Home / 1,080,085.13-1,620,121.85-440,386.39

Finding the Fourth Proportional to 1,080,085.13, 1,620,121.85 and 440,386.39

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Solution

The fourth proportional to 1,080,085.13, 1,620,121.85 and 440,386.39 is: 660,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,085.13 : 1,620,121.85 = 440,386.39 : x
  2. Step 2: Convert to fraction form
    1,080,085.13/1,620,121.85 = 440,386.39/x
  3. Step 3: Cross multiply
    1,080,085.13x = 1,620,121.85 × 440,386.39
  4. Step 4: Simplify right side
    1,080,085.13x = 713,479,621,390.06
  5. Step 5: Solve for x
    x = 713,479,621,390.06/1,080,085.13
  6. Step 6: Final answer
    x = 660,577.21

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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.