Home / 428,318.70-591,070.95-237,330.42

Finding the Fourth Proportional to 428,318.70, 591,070.95 and 237,330.42

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Solution

The fourth proportional to 428,318.70, 591,070.95 and 237,330.42 is: 327,511.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,318.70 : 591,070.95 = 237,330.42 : x
  2. Step 2: Convert to fraction form
    428,318.70/591,070.95 = 237,330.42/x
  3. Step 3: Cross multiply
    428,318.70x = 591,070.95 × 237,330.42
  4. Step 4: Simplify right side
    428,318.70x = 140,279,116,813.30
  5. Step 5: Solve for x
    x = 140,279,116,813.30/428,318.70
  6. Step 6: Final answer
    x = 327,511.07

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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.