Home / 455,432.38-628,552.11-264,445.78

Finding the Fourth Proportional to 455,432.38, 628,552.11 and 264,445.78

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Solution

The fourth proportional to 455,432.38, 628,552.11 and 264,445.78 is: 364,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,432.38 : 628,552.11 = 264,445.78 : x
  2. Step 2: Convert to fraction form
    455,432.38/628,552.11 = 264,445.78/x
  3. Step 3: Cross multiply
    455,432.38x = 628,552.11 × 264,445.78
  4. Step 4: Simplify right side
    455,432.38x = 166,217,951,222.23
  5. Step 5: Solve for x
    x = 166,217,951,222.23/455,432.38
  6. Step 6: Final answer
    x = 364,967.35

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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.