Home / 680,520.96-1,020,781.44-181,872

Finding the Fourth Proportional to 680,520.96, 1,020,781.44 and 181,872

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Solution

The fourth proportional to 680,520.96, 1,020,781.44 and 181,872 is: 272,808

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,520.96 : 1,020,781.44 = 181,872 : x
  2. Step 2: Convert to fraction form
    680,520.96/1,020,781.44 = 181,872/x
  3. Step 3: Cross multiply
    680,520.96x = 1,020,781.44 × 181,872
  4. Step 4: Simplify right side
    680,520.96x = 185,651,562,055.68
  5. Step 5: Solve for x
    x = 185,651,562,055.68/680,520.96
  6. Step 6: Final answer
    x = 272,808

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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.