Home / 388,632.48-582,554.88-188,784.42

Finding the Fourth Proportional to 388,632.48, 582,554.88 and 188,784.42

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Solution

The fourth proportional to 388,632.48, 582,554.88 and 188,784.42 is: 282,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,632.48 : 582,554.88 = 188,784.42 : x
  2. Step 2: Convert to fraction form
    388,632.48/582,554.88 = 188,784.42/x
  3. Step 3: Cross multiply
    388,632.48x = 582,554.88 × 188,784.42
  4. Step 4: Simplify right side
    388,632.48x = 109,977,285,138.97
  5. Step 5: Solve for x
    x = 109,977,285,138.97/388,632.48
  6. Step 6: Final answer
    x = 282,985.32

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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.