Home / 425,844.47-637,438.10-313,651.37

Finding the Fourth Proportional to 425,844.47, 637,438.10 and 313,651.37

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Solution

The fourth proportional to 425,844.47, 637,438.10 and 313,651.37 is: 469,498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,844.47 : 637,438.10 = 313,651.37 : x
  2. Step 2: Convert to fraction form
    425,844.47/637,438.10 = 313,651.37/x
  3. Step 3: Cross multiply
    425,844.47x = 637,438.10 × 313,651.37
  4. Step 4: Simplify right side
    425,844.47x = 199,933,328,599.75
  5. Step 5: Solve for x
    x = 199,933,328,599.75/425,844.47
  6. Step 6: Final answer
    x = 469,498.48

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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.