Home / 680,550.03-1,020,701.10-200,678.49

Finding the Fourth Proportional to 680,550.03, 1,020,701.10 and 200,678.49

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Solution

The fourth proportional to 680,550.03, 1,020,701.10 and 200,678.49 is: 300,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,550.03 : 1,020,701.10 = 200,678.49 : x
  2. Step 2: Convert to fraction form
    680,550.03/1,020,701.10 = 200,678.49/x
  3. Step 3: Cross multiply
    680,550.03x = 1,020,701.10 × 200,678.49
  4. Step 4: Simplify right side
    680,550.03x = 204,832,755,489.34
  5. Step 5: Solve for x
    x = 204,832,755,489.34/680,550.03
  6. Step 6: Final answer
    x = 300,981.19

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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.