Home / 388,055.39-582,458.46-280,096.04

Finding the Fourth Proportional to 388,055.39, 582,458.46 and 280,096.04

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Solution

The fourth proportional to 388,055.39, 582,458.46 and 280,096.04 is: 420,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,055.39 : 582,458.46 = 280,096.04 : x
  2. Step 2: Convert to fraction form
    388,055.39/582,458.46 = 280,096.04/x
  3. Step 3: Cross multiply
    388,055.39x = 582,458.46 × 280,096.04
  4. Step 4: Simplify right side
    388,055.39x = 163,144,306,710.02
  5. Step 5: Solve for x
    x = 163,144,306,710.02/388,055.39
  6. Step 6: Final answer
    x = 420,415.01

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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.