Home / 626,399.15-864,433.17-339,919.29

Finding the Fourth Proportional to 626,399.15, 864,433.17 and 339,919.29

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Solution

The fourth proportional to 626,399.15, 864,433.17 and 339,919.29 is: 469,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,399.15 : 864,433.17 = 339,919.29 : x
  2. Step 2: Convert to fraction form
    626,399.15/864,433.17 = 339,919.29/x
  3. Step 3: Cross multiply
    626,399.15x = 864,433.17 × 339,919.29
  4. Step 4: Simplify right side
    626,399.15x = 293,837,509,398.85
  5. Step 5: Solve for x
    x = 293,837,509,398.85/626,399.15
  6. Step 6: Final answer
    x = 469,089.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.