Home / 428,506.20-591,296.76-237,515.49

Finding the Fourth Proportional to 428,506.20, 591,296.76 and 237,515.49

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Solution

The fourth proportional to 428,506.20, 591,296.76 and 237,515.49 is: 327,748.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,506.20 : 591,296.76 = 237,515.49 : x
  2. Step 2: Convert to fraction form
    428,506.20/591,296.76 = 237,515.49/x
  3. Step 3: Cross multiply
    428,506.20x = 591,296.76 × 237,515.49
  4. Step 4: Simplify right side
    428,506.20x = 140,442,139,686.81
  5. Step 5: Solve for x
    x = 140,442,139,686.81/428,506.20
  6. Step 6: Final answer
    x = 327,748.21

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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.