Home / 3,880,657.30-5,821,838.02-1,147,990.78

Finding the Fourth Proportional to 3,880,657.30, 5,821,838.02 and 1,147,990.78

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Solution

The fourth proportional to 3,880,657.30, 5,821,838.02 and 1,147,990.78 is: 1,722,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,657.30 : 5,821,838.02 = 1,147,990.78 : x
  2. Step 2: Convert to fraction form
    3,880,657.30/5,821,838.02 = 1,147,990.78/x
  3. Step 3: Cross multiply
    3,880,657.30x = 5,821,838.02 × 1,147,990.78
  4. Step 4: Simplify right side
    3,880,657.30x = 6,683,416,369,613.46
  5. Step 5: Solve for x
    x = 6,683,416,369,613.46/3,880,657.30
  6. Step 6: Final answer
    x = 1,722,238.23

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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.