Home / 817,736.89-1,226,765.81-285,275.29

Finding the Fourth Proportional to 817,736.89, 1,226,765.81 and 285,275.29

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Solution

The fourth proportional to 817,736.89, 1,226,765.81 and 285,275.29 is: 427,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,736.89 : 1,226,765.81 = 285,275.29 : x
  2. Step 2: Convert to fraction form
    817,736.89/1,226,765.81 = 285,275.29/x
  3. Step 3: Cross multiply
    817,736.89x = 1,226,765.81 × 285,275.29
  4. Step 4: Simplify right side
    817,736.89x = 349,965,972,209.84
  5. Step 5: Solve for x
    x = 349,965,972,209.84/817,736.89
  6. Step 6: Final answer
    x = 427,968.92

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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.