Home / 1,215,744.29-1,677,732.32-664,471.10

Finding the Fourth Proportional to 1,215,744.29, 1,677,732.32 and 664,471.10

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Solution

The fourth proportional to 1,215,744.29, 1,677,732.32 and 664,471.10 is: 916,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,744.29 : 1,677,732.32 = 664,471.10 : x
  2. Step 2: Convert to fraction form
    1,215,744.29/1,677,732.32 = 664,471.10/x
  3. Step 3: Cross multiply
    1,215,744.29x = 1,677,732.32 × 664,471.10
  4. Step 4: Simplify right side
    1,215,744.29x = 1,114,804,628,464.93
  5. Step 5: Solve for x
    x = 1,114,804,628,464.93/1,215,744.29
  6. Step 6: Final answer
    x = 916,972.95

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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.