Home / 421,780.16-582,056.60-230,793.56

Finding the Fourth Proportional to 421,780.16, 582,056.60 and 230,793.56

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Solution

The fourth proportional to 421,780.16, 582,056.60 and 230,793.56 is: 318,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,780.16 : 582,056.60 = 230,793.56 : x
  2. Step 2: Convert to fraction form
    421,780.16/582,056.60 = 230,793.56/x
  3. Step 3: Cross multiply
    421,780.16x = 582,056.60 × 230,793.56
  4. Step 4: Simplify right side
    421,780.16x = 134,334,914,835.50
  5. Step 5: Solve for x
    x = 134,334,914,835.50/421,780.16
  6. Step 6: Final answer
    x = 318,495.10

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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.