Home / 421,789.78-582,069.95-230,803.22

Finding the Fourth Proportional to 421,789.78, 582,069.95 and 230,803.22

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Solution

The fourth proportional to 421,789.78, 582,069.95 and 230,803.22 is: 318,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,789.78 : 582,069.95 = 230,803.22 : x
  2. Step 2: Convert to fraction form
    421,789.78/582,069.95 = 230,803.22/x
  3. Step 3: Cross multiply
    421,789.78x = 582,069.95 × 230,803.22
  4. Step 4: Simplify right side
    421,789.78x = 134,343,619,891.91
  5. Step 5: Solve for x
    x = 134,343,619,891.91/421,789.78
  6. Step 6: Final answer
    x = 318,508.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.