Home / 428,869.67-591,835.87-237,878.15

Finding the Fourth Proportional to 428,869.67, 591,835.87 and 237,878.15

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Solution

The fourth proportional to 428,869.67, 591,835.87 and 237,878.15 is: 328,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,869.67 : 591,835.87 = 237,878.15 : x
  2. Step 2: Convert to fraction form
    428,869.67/591,835.87 = 237,878.15/x
  3. Step 3: Cross multiply
    428,869.67x = 591,835.87 × 237,878.15
  4. Step 4: Simplify right side
    428,869.67x = 140,784,822,744.14
  5. Step 5: Solve for x
    x = 140,784,822,744.14/428,869.67
  6. Step 6: Final answer
    x = 328,269.48

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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.