Home / 428,967.90-591,729.76-267,542.70

Finding the Fourth Proportional to 428,967.90, 591,729.76 and 267,542.70

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Solution

The fourth proportional to 428,967.90, 591,729.76 and 267,542.70 is: 369,055.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,967.90 : 591,729.76 = 267,542.70 : x
  2. Step 2: Convert to fraction form
    428,967.90/591,729.76 = 267,542.70/x
  3. Step 3: Cross multiply
    428,967.90x = 591,729.76 × 267,542.70
  4. Step 4: Simplify right side
    428,967.90x = 158,312,974,271.27
  5. Step 5: Solve for x
    x = 158,312,974,271.27/428,967.90
  6. Step 6: Final answer
    x = 369,055.53

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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.