Home / 1,149,687.72-1,586,618.01-640,389.96

Finding the Fourth Proportional to 1,149,687.72, 1,586,618.01 and 640,389.96

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Solution

The fourth proportional to 1,149,687.72, 1,586,618.01 and 640,389.96 is: 883,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,687.72 : 1,586,618.01 = 640,389.96 : x
  2. Step 2: Convert to fraction form
    1,149,687.72/1,586,618.01 = 640,389.96/x
  3. Step 3: Cross multiply
    1,149,687.72x = 1,586,618.01 × 640,389.96
  4. Step 4: Simplify right side
    1,149,687.72x = 1,016,054,243,959.18
  5. Step 5: Solve for x
    x = 1,016,054,243,959.18/1,149,687.72
  6. Step 6: Final answer
    x = 883,765.41

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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.