Home / 388,567.30-582,799.90-122,329.20

Finding the Fourth Proportional to 388,567.30, 582,799.90 and 122,329.20

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Solution

The fourth proportional to 388,567.30, 582,799.90 and 122,329.20 is: 183,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,567.30 : 582,799.90 = 122,329.20 : x
  2. Step 2: Convert to fraction form
    388,567.30/582,799.90 = 122,329.20/x
  3. Step 3: Cross multiply
    388,567.30x = 582,799.90 × 122,329.20
  4. Step 4: Simplify right side
    388,567.30x = 71,293,445,527.08
  5. Step 5: Solve for x
    x = 71,293,445,527.08/388,567.30
  6. Step 6: Final answer
    x = 183,477.73

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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.