Home / 680,233.80-1,020,350.70-381,635.40

Finding the Fourth Proportional to 680,233.80, 1,020,350.70 and 381,635.40

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Solution

The fourth proportional to 680,233.80, 1,020,350.70 and 381,635.40 is: 572,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,233.80 : 1,020,350.70 = 381,635.40 : x
  2. Step 2: Convert to fraction form
    680,233.80/1,020,350.70 = 381,635.40/x
  3. Step 3: Cross multiply
    680,233.80x = 1,020,350.70 × 381,635.40
  4. Step 4: Simplify right side
    680,233.80x = 389,401,947,534.78
  5. Step 5: Solve for x
    x = 389,401,947,534.78/680,233.80
  6. Step 6: Final answer
    x = 572,453.10

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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.