Home / 1,326,304.11-1,988,039.78-756,458.18

Finding the Fourth Proportional to 1,326,304.11, 1,988,039.78 and 756,458.18

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Solution

The fourth proportional to 1,326,304.11, 1,988,039.78 and 756,458.18 is: 1,133,879.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,304.11 : 1,988,039.78 = 756,458.18 : x
  2. Step 2: Convert to fraction form
    1,326,304.11/1,988,039.78 = 756,458.18/x
  3. Step 3: Cross multiply
    1,326,304.11x = 1,988,039.78 × 756,458.18
  4. Step 4: Simplify right side
    1,326,304.11x = 1,503,868,953,746.40
  5. Step 5: Solve for x
    x = 1,503,868,953,746.40/1,326,304.11
  6. Step 6: Final answer
    x = 1,133,879.43

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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.