Home / 1,245,896.64-1,869,001.29-487,640.25

Finding the Fourth Proportional to 1,245,896.64, 1,869,001.29 and 487,640.25

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Solution

The fourth proportional to 1,245,896.64, 1,869,001.29 and 487,640.25 is: 731,521.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,896.64 : 1,869,001.29 = 487,640.25 : x
  2. Step 2: Convert to fraction form
    1,245,896.64/1,869,001.29 = 487,640.25/x
  3. Step 3: Cross multiply
    1,245,896.64x = 1,869,001.29 × 487,640.25
  4. Step 4: Simplify right side
    1,245,896.64x = 911,400,256,305.92
  5. Step 5: Solve for x
    x = 911,400,256,305.92/1,245,896.64
  6. Step 6: Final answer
    x = 731,521.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.