Home / 868,213.85-1,197,918.68-500,803.31

Finding the Fourth Proportional to 868,213.85, 1,197,918.68 and 500,803.31

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Solution

The fourth proportional to 868,213.85, 1,197,918.68 and 500,803.31 is: 690,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,213.85 : 1,197,918.68 = 500,803.31 : x
  2. Step 2: Convert to fraction form
    868,213.85/1,197,918.68 = 500,803.31/x
  3. Step 3: Cross multiply
    868,213.85x = 1,197,918.68 × 500,803.31
  4. Step 4: Simplify right side
    868,213.85x = 599,921,640,545.61
  5. Step 5: Solve for x
    x = 599,921,640,545.61/868,213.85
  6. Step 6: Final answer
    x = 690,983.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.