Home / 626,419.22-864,459.08-339,939.31

Finding the Fourth Proportional to 626,419.22, 864,459.08 and 339,939.31

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Solution

The fourth proportional to 626,419.22, 864,459.08 and 339,939.31 is: 469,116.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,419.22 : 864,459.08 = 339,939.31 : x
  2. Step 2: Convert to fraction form
    626,419.22/864,459.08 = 339,939.31/x
  3. Step 3: Cross multiply
    626,419.22x = 864,459.08 × 339,939.31
  4. Step 4: Simplify right side
    626,419.22x = 293,863,619,542.90
  5. Step 5: Solve for x
    x = 293,863,619,542.90/626,419.22
  6. Step 6: Final answer
    x = 469,116.54

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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.