Home / 519,849.12-780,181.94-267,119.40

Finding the Fourth Proportional to 519,849.12, 780,181.94 and 267,119.40

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Solution

The fourth proportional to 519,849.12, 780,181.94 and 267,119.40 is: 400,888.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,849.12 : 780,181.94 = 267,119.40 : x
  2. Step 2: Convert to fraction form
    519,849.12/780,181.94 = 267,119.40/x
  3. Step 3: Cross multiply
    519,849.12x = 780,181.94 × 267,119.40
  4. Step 4: Simplify right side
    519,849.12x = 208,401,731,703.64
  5. Step 5: Solve for x
    x = 208,401,731,703.64/519,849.12
  6. Step 6: Final answer
    x = 400,888.88

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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.