Home / 454,034.20-681,051.30-430,072.60

Finding the Fourth Proportional to 454,034.20, 681,051.30 and 430,072.60

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Solution

The fourth proportional to 454,034.20, 681,051.30 and 430,072.60 is: 645,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,034.20 : 681,051.30 = 430,072.60 : x
  2. Step 2: Convert to fraction form
    454,034.20/681,051.30 = 430,072.60/x
  3. Step 3: Cross multiply
    454,034.20x = 681,051.30 × 430,072.60
  4. Step 4: Simplify right side
    454,034.20x = 292,901,503,324.38
  5. Step 5: Solve for x
    x = 292,901,503,324.38/454,034.20
  6. Step 6: Final answer
    x = 645,108.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.