Home / 1,212,157-1,818,244.61-538,057.09

Finding the Fourth Proportional to 1,212,157, 1,818,244.61 and 538,057.09

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Solution

The fourth proportional to 1,212,157, 1,818,244.61 and 538,057.09 is: 807,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,157 : 1,818,244.61 = 538,057.09 : x
  2. Step 2: Convert to fraction form
    1,212,157/1,818,244.61 = 538,057.09/x
  3. Step 3: Cross multiply
    1,212,157x = 1,818,244.61 × 538,057.09
  4. Step 4: Simplify right side
    1,212,157x = 978,319,403,764.79
  5. Step 5: Solve for x
    x = 978,319,403,764.79/1,212,157
  6. Step 6: Final answer
    x = 807,089.68

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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.