Home / 485,440.22-727,588.27-218,888.66

Finding the Fourth Proportional to 485,440.22, 727,588.27 and 218,888.66

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Solution

The fourth proportional to 485,440.22, 727,588.27 and 218,888.66 is: 328,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,440.22 : 727,588.27 = 218,888.66 : x
  2. Step 2: Convert to fraction form
    485,440.22/727,588.27 = 218,888.66/x
  3. Step 3: Cross multiply
    485,440.22x = 727,588.27 × 218,888.66
  4. Step 4: Simplify right side
    485,440.22x = 159,260,821,452.02
  5. Step 5: Solve for x
    x = 159,260,821,452.02/485,440.22
  6. Step 6: Final answer
    x = 328,075.04

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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.