Home / 421,826.60-582,129.06-230,839.40

Finding the Fourth Proportional to 421,826.60, 582,129.06 and 230,839.40

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Solution

The fourth proportional to 421,826.60, 582,129.06 and 230,839.40 is: 318,562.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,826.60 : 582,129.06 = 230,839.40 : x
  2. Step 2: Convert to fraction form
    421,826.60/582,129.06 = 230,839.40/x
  3. Step 3: Cross multiply
    421,826.60x = 582,129.06 × 230,839.40
  4. Step 4: Simplify right side
    421,826.60x = 134,378,322,932.96
  5. Step 5: Solve for x
    x = 134,378,322,932.96/421,826.60
  6. Step 6: Final answer
    x = 318,562.94

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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.