Home / 1,284,186.78-1,926,280.80-324,645.30

Finding the Fourth Proportional to 1,284,186.78, 1,926,280.80 and 324,645.30

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Solution

The fourth proportional to 1,284,186.78, 1,926,280.80 and 324,645.30 is: 486,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,186.78 : 1,926,280.80 = 324,645.30 : x
  2. Step 2: Convert to fraction form
    1,284,186.78/1,926,280.80 = 324,645.30/x
  3. Step 3: Cross multiply
    1,284,186.78x = 1,926,280.80 × 324,645.30
  4. Step 4: Simplify right side
    1,284,186.78x = 625,358,008,200.24
  5. Step 5: Solve for x
    x = 625,358,008,200.24/1,284,186.78
  6. Step 6: Final answer
    x = 486,968.11

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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.