Home / 388,607.82-582,932.55-122,389.08

Finding the Fourth Proportional to 388,607.82, 582,932.55 and 122,389.08

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Solution

The fourth proportional to 388,607.82, 582,932.55 and 122,389.08 is: 183,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,607.82 : 582,932.55 = 122,389.08 : x
  2. Step 2: Convert to fraction form
    388,607.82/582,932.55 = 122,389.08/x
  3. Step 3: Cross multiply
    388,607.82x = 582,932.55 × 122,389.08
  4. Step 4: Simplify right side
    388,607.82x = 71,344,578,496.55
  5. Step 5: Solve for x
    x = 71,344,578,496.55/388,607.82
  6. Step 6: Final answer
    x = 183,590.18

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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.