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Finding the Fourth Proportional to 773,718.11, 1,067,807.72 and 434,187.71

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Solution

The fourth proportional to 773,718.11, 1,067,807.72 and 434,187.71 is: 599,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,718.11 : 1,067,807.72 = 434,187.71 : x
  2. Step 2: Convert to fraction form
    773,718.11/1,067,807.72 = 434,187.71/x
  3. Step 3: Cross multiply
    773,718.11x = 1,067,807.72 × 434,187.71
  4. Step 4: Simplify right side
    773,718.11x = 463,628,988,667.12
  5. Step 5: Solve for x
    x = 463,628,988,667.12/773,718.11
  6. Step 6: Final answer
    x = 599,222.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.