Home / 338,394.54-507,839.90-272,628.71

Finding the Fourth Proportional to 338,394.54, 507,839.90 and 272,628.71

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Solution

The fourth proportional to 338,394.54, 507,839.90 and 272,628.71 is: 409,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,394.54 : 507,839.90 = 272,628.71 : x
  2. Step 2: Convert to fraction form
    338,394.54/507,839.90 = 272,628.71/x
  3. Step 3: Cross multiply
    338,394.54x = 507,839.90 × 272,628.71
  4. Step 4: Simplify right side
    338,394.54x = 138,451,732,921.19
  5. Step 5: Solve for x
    x = 138,451,732,921.19/338,394.54
  6. Step 6: Final answer
    x = 409,142.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.