Home / 521,962.78-720,359.19-292,559.03

Finding the Fourth Proportional to 521,962.78, 720,359.19 and 292,559.03

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Solution

The fourth proportional to 521,962.78, 720,359.19 and 292,559.03 is: 403,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,962.78 : 720,359.19 = 292,559.03 : x
  2. Step 2: Convert to fraction form
    521,962.78/720,359.19 = 292,559.03/x
  3. Step 3: Cross multiply
    521,962.78x = 720,359.19 × 292,559.03
  4. Step 4: Simplify right side
    521,962.78x = 210,747,584,415.19
  5. Step 5: Solve for x
    x = 210,747,584,415.19/521,962.78
  6. Step 6: Final answer
    x = 403,759.80

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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.