Home / 1,149,769.38-1,586,730.78-640,471.98

Finding the Fourth Proportional to 1,149,769.38, 1,586,730.78 and 640,471.98

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Solution

The fourth proportional to 1,149,769.38, 1,586,730.78 and 640,471.98 is: 883,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,769.38 : 1,586,730.78 = 640,471.98 : x
  2. Step 2: Convert to fraction form
    1,149,769.38/1,586,730.78 = 640,471.98/x
  3. Step 3: Cross multiply
    1,149,769.38x = 1,586,730.78 × 640,471.98
  4. Step 4: Simplify right side
    1,149,769.38x = 1,016,256,604,393.54
  5. Step 5: Solve for x
    x = 1,016,256,604,393.54/1,149,769.38
  6. Step 6: Final answer
    x = 883,878.65

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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.