Home / 815,298.12-1,222,552.08-341,856.36

Finding the Fourth Proportional to 815,298.12, 1,222,552.08 and 341,856.36

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Solution

The fourth proportional to 815,298.12, 1,222,552.08 and 341,856.36 is: 512,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,298.12 : 1,222,552.08 = 341,856.36 : x
  2. Step 2: Convert to fraction form
    815,298.12/1,222,552.08 = 341,856.36/x
  3. Step 3: Cross multiply
    815,298.12x = 1,222,552.08 × 341,856.36
  4. Step 4: Simplify right side
    815,298.12x = 417,937,203,979.23
  5. Step 5: Solve for x
    x = 417,937,203,979.23/815,298.12
  6. Step 6: Final answer
    x = 512,618.87

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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.