Home / 1,221,211.51-1,684,168.97-762,368.65

Finding the Fourth Proportional to 1,221,211.51, 1,684,168.97 and 762,368.65

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Solution

The fourth proportional to 1,221,211.51, 1,684,168.97 and 762,368.65 is: 1,051,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,211.51 : 1,684,168.97 = 762,368.65 : x
  2. Step 2: Convert to fraction form
    1,221,211.51/1,684,168.97 = 762,368.65/x
  3. Step 3: Cross multiply
    1,221,211.51x = 1,684,168.97 × 762,368.65
  4. Step 4: Simplify right side
    1,221,211.51x = 1,283,957,616,008.52
  5. Step 5: Solve for x
    x = 1,283,957,616,008.52/1,221,211.51
  6. Step 6: Final answer
    x = 1,051,380.21

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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.