Home / 758,806.80-1,138,210.20-723,814.80

Finding the Fourth Proportional to 758,806.80, 1,138,210.20 and 723,814.80

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Solution

The fourth proportional to 758,806.80, 1,138,210.20 and 723,814.80 is: 1,085,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,806.80 : 1,138,210.20 = 723,814.80 : x
  2. Step 2: Convert to fraction form
    758,806.80/1,138,210.20 = 723,814.80/x
  3. Step 3: Cross multiply
    758,806.80x = 1,138,210.20 × 723,814.80
  4. Step 4: Simplify right side
    758,806.80x = 823,853,388,270.96
  5. Step 5: Solve for x
    x = 823,853,388,270.96/758,806.80
  6. Step 6: Final answer
    x = 1,085,722.20

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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.