Home / 425,284.76-637,985.46-125,788.88

Finding the Fourth Proportional to 425,284.76, 637,985.46 and 125,788.88

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Solution

The fourth proportional to 425,284.76, 637,985.46 and 125,788.88 is: 188,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,284.76 : 637,985.46 = 125,788.88 : x
  2. Step 2: Convert to fraction form
    425,284.76/637,985.46 = 125,788.88/x
  3. Step 3: Cross multiply
    425,284.76x = 637,985.46 × 125,788.88
  4. Step 4: Simplify right side
    425,284.76x = 80,251,476,469.68
  5. Step 5: Solve for x
    x = 80,251,476,469.68/425,284.76
  6. Step 6: Final answer
    x = 188,700.57

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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.