Home / 1,149,458.91-1,586,302.50-640,161.28

Finding the Fourth Proportional to 1,149,458.91, 1,586,302.50 and 640,161.28

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Solution

The fourth proportional to 1,149,458.91, 1,586,302.50 and 640,161.28 is: 883,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,458.91 : 1,586,302.50 = 640,161.28 : x
  2. Step 2: Convert to fraction form
    1,149,458.91/1,586,302.50 = 640,161.28/x
  3. Step 3: Cross multiply
    1,149,458.91x = 1,586,302.50 × 640,161.28
  4. Step 4: Simplify right side
    1,149,458.91x = 1,015,489,439,649.78
  5. Step 5: Solve for x
    x = 1,015,489,439,649.78/1,149,458.91
  6. Step 6: Final answer
    x = 883,449.97

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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.