Home / 3,280,532.20-4,920,798.30-1,931,309.80

Finding the Fourth Proportional to 3,280,532.20, 4,920,798.30 and 1,931,309.80

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Solution

The fourth proportional to 3,280,532.20, 4,920,798.30 and 1,931,309.80 is: 2,896,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,532.20 : 4,920,798.30 = 1,931,309.80 : x
  2. Step 2: Convert to fraction form
    3,280,532.20/4,920,798.30 = 1,931,309.80/x
  3. Step 3: Cross multiply
    3,280,532.20x = 4,920,798.30 × 1,931,309.80
  4. Step 4: Simplify right side
    3,280,532.20x = 9,503,585,980,613.34
  5. Step 5: Solve for x
    x = 9,503,585,980,613.34/3,280,532.20
  6. Step 6: Final answer
    x = 2,896,964.70

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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.