Home / 942,238.56-1,412,820.72-643,081.28

Finding the Fourth Proportional to 942,238.56, 1,412,820.72 and 643,081.28

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Solution

The fourth proportional to 942,238.56, 1,412,820.72 and 643,081.28 is: 964,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,238.56 : 1,412,820.72 = 643,081.28 : x
  2. Step 2: Convert to fraction form
    942,238.56/1,412,820.72 = 643,081.28/x
  3. Step 3: Cross multiply
    942,238.56x = 1,412,820.72 × 643,081.28
  4. Step 4: Simplify right side
    942,238.56x = 908,558,557,028.12
  5. Step 5: Solve for x
    x = 908,558,557,028.12/942,238.56
  6. Step 6: Final answer
    x = 964,255.33

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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.