Home / 626,428.37-864,471.12-339,948.46

Finding the Fourth Proportional to 626,428.37, 864,471.12 and 339,948.46

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Solution

The fourth proportional to 626,428.37, 864,471.12 and 339,948.46 is: 469,128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,428.37 : 864,471.12 = 339,948.46 : x
  2. Step 2: Convert to fraction form
    626,428.37/864,471.12 = 339,948.46/x
  3. Step 3: Cross multiply
    626,428.37x = 864,471.12 × 339,948.46
  4. Step 4: Simplify right side
    626,428.37x = 293,875,625,958.48
  5. Step 5: Solve for x
    x = 293,875,625,958.48/626,428.37
  6. Step 6: Final answer
    x = 469,128.86

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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.