Home / 521,631.72-719,860.91-292,187.03

Finding the Fourth Proportional to 521,631.72, 719,860.91 and 292,187.03

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Solution

The fourth proportional to 521,631.72, 719,860.91 and 292,187.03 is: 403,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,631.72 : 719,860.91 = 292,187.03 : x
  2. Step 2: Convert to fraction form
    521,631.72/719,860.91 = 292,187.03/x
  3. Step 3: Cross multiply
    521,631.72x = 719,860.91 × 292,187.03
  4. Step 4: Simplify right side
    521,631.72x = 210,334,016,245.76
  5. Step 5: Solve for x
    x = 210,334,016,245.76/521,631.72
  6. Step 6: Final answer
    x = 403,223.21

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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.