Home / 1,369,312.56-1,889,640.36-765,700.56

Finding the Fourth Proportional to 1,369,312.56, 1,889,640.36 and 765,700.56

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Solution

The fourth proportional to 1,369,312.56, 1,889,640.36 and 765,700.56 is: 1,056,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,312.56 : 1,889,640.36 = 765,700.56 : x
  2. Step 2: Convert to fraction form
    1,369,312.56/1,889,640.36 = 765,700.56/x
  3. Step 3: Cross multiply
    1,369,312.56x = 1,889,640.36 × 765,700.56
  4. Step 4: Simplify right side
    1,369,312.56x = 1,446,898,681,850.60
  5. Step 5: Solve for x
    x = 1,446,898,681,850.60/1,369,312.56
  6. Step 6: Final answer
    x = 1,056,660.64

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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.