Home / 1,213,871.20-1,821,317.10-652,249.60

Finding the Fourth Proportional to 1,213,871.20, 1,821,317.10 and 652,249.60

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Solution

The fourth proportional to 1,213,871.20, 1,821,317.10 and 652,249.60 is: 978,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,871.20 : 1,821,317.10 = 652,249.60 : x
  2. Step 2: Convert to fraction form
    1,213,871.20/1,821,317.10 = 652,249.60/x
  3. Step 3: Cross multiply
    1,213,871.20x = 1,821,317.10 × 652,249.60
  4. Step 4: Simplify right side
    1,213,871.20x = 1,187,953,349,948.16
  5. Step 5: Solve for x
    x = 1,187,953,349,948.16/1,213,871.20
  6. Step 6: Final answer
    x = 978,648.60

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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.