Home / 388,084.20-582,126.30-341,428.20

Finding the Fourth Proportional to 388,084.20, 582,126.30 and 341,428.20

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Solution

The fourth proportional to 388,084.20, 582,126.30 and 341,428.20 is: 512,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,084.20 : 582,126.30 = 341,428.20 : x
  2. Step 2: Convert to fraction form
    388,084.20/582,126.30 = 341,428.20/x
  3. Step 3: Cross multiply
    388,084.20x = 582,126.30 × 341,428.20
  4. Step 4: Simplify right side
    388,084.20x = 198,754,334,781.66
  5. Step 5: Solve for x
    x = 198,754,334,781.66/388,084.20
  6. Step 6: Final answer
    x = 512,142.30

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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.