Home / 672,155.20-1,008,117.60-251,214.40

Finding the Fourth Proportional to 672,155.20, 1,008,117.60 and 251,214.40

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Solution

The fourth proportional to 672,155.20, 1,008,117.60 and 251,214.40 is: 376,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,155.20 : 1,008,117.60 = 251,214.40 : x
  2. Step 2: Convert to fraction form
    672,155.20/1,008,117.60 = 251,214.40/x
  3. Step 3: Cross multiply
    672,155.20x = 1,008,117.60 × 251,214.40
  4. Step 4: Simplify right side
    672,155.20x = 253,253,658,013.44
  5. Step 5: Solve for x
    x = 253,253,658,013.44/672,155.20
  6. Step 6: Final answer
    x = 376,778.54

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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.