Home / 672,147.20-1,008,105.60-251,206.40

Finding the Fourth Proportional to 672,147.20, 1,008,105.60 and 251,206.40

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Solution

The fourth proportional to 672,147.20, 1,008,105.60 and 251,206.40 is: 376,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,147.20 : 1,008,105.60 = 251,206.40 : x
  2. Step 2: Convert to fraction form
    672,147.20/1,008,105.60 = 251,206.40/x
  3. Step 3: Cross multiply
    672,147.20x = 1,008,105.60 × 251,206.40
  4. Step 4: Simplify right side
    672,147.20x = 253,242,578,595.84
  5. Step 5: Solve for x
    x = 253,242,578,595.84/672,147.20
  6. Step 6: Final answer
    x = 376,766.55

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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.