Home / 758,820.80-1,138,231.20-723,828.80

Finding the Fourth Proportional to 758,820.80, 1,138,231.20 and 723,828.80

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Solution

The fourth proportional to 758,820.80, 1,138,231.20 and 723,828.80 is: 1,085,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,820.80 : 1,138,231.20 = 723,828.80 : x
  2. Step 2: Convert to fraction form
    758,820.80/1,138,231.20 = 723,828.80/x
  3. Step 3: Cross multiply
    758,820.80x = 1,138,231.20 × 723,828.80
  4. Step 4: Simplify right side
    758,820.80x = 823,884,523,618.56
  5. Step 5: Solve for x
    x = 823,884,523,618.56/758,820.80
  6. Step 6: Final answer
    x = 1,085,743.20

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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.