Home / 810,935.78-1,216,275.98-271,187.91

Finding the Fourth Proportional to 810,935.78, 1,216,275.98 and 271,187.91

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Solution

The fourth proportional to 810,935.78, 1,216,275.98 and 271,187.91 is: 406,739.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,935.78 : 1,216,275.98 = 271,187.91 : x
  2. Step 2: Convert to fraction form
    810,935.78/1,216,275.98 = 271,187.91/x
  3. Step 3: Cross multiply
    810,935.78x = 1,216,275.98 × 271,187.91
  4. Step 4: Simplify right side
    810,935.78x = 329,839,339,643.46
  5. Step 5: Solve for x
    x = 329,839,339,643.46/810,935.78
  6. Step 6: Final answer
    x = 406,739.16

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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.