Home / 424,819.74-637,338.96-125,288.22

Finding the Fourth Proportional to 424,819.74, 637,338.96 and 125,288.22

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Solution

The fourth proportional to 424,819.74, 637,338.96 and 125,288.22 is: 187,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,819.74 : 637,338.96 = 125,288.22 : x
  2. Step 2: Convert to fraction form
    424,819.74/637,338.96 = 125,288.22/x
  3. Step 3: Cross multiply
    424,819.74x = 637,338.96 × 125,288.22
  4. Step 4: Simplify right side
    424,819.74x = 79,851,063,835.05
  5. Step 5: Solve for x
    x = 79,851,063,835.05/424,819.74
  6. Step 6: Final answer
    x = 187,964.58

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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.