Home / 626,418.64-864,458.27-339,938.72

Finding the Fourth Proportional to 626,418.64, 864,458.27 and 339,938.72

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Solution

The fourth proportional to 626,418.64, 864,458.27 and 339,938.72 is: 469,115.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,418.64 : 864,458.27 = 339,938.72 : x
  2. Step 2: Convert to fraction form
    626,418.64/864,458.27 = 339,938.72/x
  3. Step 3: Cross multiply
    626,418.64x = 864,458.27 × 339,938.72
  4. Step 4: Simplify right side
    626,418.64x = 293,862,839,727.63
  5. Step 5: Solve for x
    x = 293,862,839,727.63/626,418.64
  6. Step 6: Final answer
    x = 469,115.74

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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.