Home / 428,881.18-591,856.60-237,894.56

Finding the Fourth Proportional to 428,881.18, 591,856.60 and 237,894.56

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Solution

The fourth proportional to 428,881.18, 591,856.60 and 237,894.56 is: 328,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,881.18 : 591,856.60 = 237,894.56 : x
  2. Step 2: Convert to fraction form
    428,881.18/591,856.60 = 237,894.56/x
  3. Step 3: Cross multiply
    428,881.18x = 591,856.60 × 237,894.56
  4. Step 4: Simplify right side
    428,881.18x = 140,799,465,440.10
  5. Step 5: Solve for x
    x = 140,799,465,440.10/428,881.18
  6. Step 6: Final answer
    x = 328,294.81

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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.