Home / 680,417.20-1,020,647.90-200,604.76

Finding the Fourth Proportional to 680,417.20, 1,020,647.90 and 200,604.76

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Solution

The fourth proportional to 680,417.20, 1,020,647.90 and 200,604.76 is: 300,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,417.20 : 1,020,647.90 = 200,604.76 : x
  2. Step 2: Convert to fraction form
    680,417.20/1,020,647.90 = 200,604.76/x
  3. Step 3: Cross multiply
    680,417.20x = 1,020,647.90 × 200,604.76
  4. Step 4: Simplify right side
    680,417.20x = 204,746,832,432.42
  5. Step 5: Solve for x
    x = 204,746,832,432.42/680,417.20
  6. Step 6: Final answer
    x = 300,913.66

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1.5x scale

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.