Home / 626,418.61-864,458.22-339,938.67

Finding the Fourth Proportional to 626,418.61, 864,458.22 and 339,938.67

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Solution

The fourth proportional to 626,418.61, 864,458.22 and 339,938.67 is: 469,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,418.61 : 864,458.22 = 339,938.67 : x
  2. Step 2: Convert to fraction form
    626,418.61/864,458.22 = 339,938.67/x
  3. Step 3: Cross multiply
    626,418.61x = 864,458.22 × 339,938.67
  4. Step 4: Simplify right side
    626,418.61x = 293,862,782,093.86
  5. Step 5: Solve for x
    x = 293,862,782,093.86/626,418.61
  6. Step 6: Final answer
    x = 469,115.66

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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.