Home / 1,221,294.81-1,684,283.70-762,451.89

Finding the Fourth Proportional to 1,221,294.81, 1,684,283.70 and 762,451.89

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Solution

The fourth proportional to 1,221,294.81, 1,684,283.70 and 762,451.89 is: 1,051,494.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,294.81 : 1,684,283.70 = 762,451.89 : x
  2. Step 2: Convert to fraction form
    1,221,294.81/1,684,283.70 = 762,451.89/x
  3. Step 3: Cross multiply
    1,221,294.81x = 1,684,283.70 × 762,451.89
  4. Step 4: Simplify right side
    1,221,294.81x = 1,284,185,290,361.19
  5. Step 5: Solve for x
    x = 1,284,185,290,361.19/1,221,294.81
  6. Step 6: Final answer
    x = 1,051,494.92

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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.