Home / 1,369,715.64-1,890,104.94-765,987

Finding the Fourth Proportional to 1,369,715.64, 1,890,104.94 and 765,987

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Solution

The fourth proportional to 1,369,715.64, 1,890,104.94 and 765,987 is: 1,057,004.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,715.64 : 1,890,104.94 = 765,987 : x
  2. Step 2: Convert to fraction form
    1,369,715.64/1,890,104.94 = 765,987/x
  3. Step 3: Cross multiply
    1,369,715.64x = 1,890,104.94 × 765,987
  4. Step 4: Simplify right side
    1,369,715.64x = 1,447,795,812,675.78
  5. Step 5: Solve for x
    x = 1,447,795,812,675.78/1,369,715.64
  6. Step 6: Final answer
    x = 1,057,004.66

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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.