Home / 2,990,680.50-4,486,020.76-889,432.50

Finding the Fourth Proportional to 2,990,680.50, 4,486,020.76 and 889,432.50

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Solution

The fourth proportional to 2,990,680.50, 4,486,020.76 and 889,432.50 is: 1,334,148.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,680.50 : 4,486,020.76 = 889,432.50 : x
  2. Step 2: Convert to fraction form
    2,990,680.50/4,486,020.76 = 889,432.50/x
  3. Step 3: Cross multiply
    2,990,680.50x = 4,486,020.76 × 889,432.50
  4. Step 4: Simplify right side
    2,990,680.50x = 3,990,012,659,618.70
  5. Step 5: Solve for x
    x = 3,990,012,659,618.70/2,990,680.50
  6. Step 6: Final answer
    x = 1,334,148.75

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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.