Home / 903,298.36-1,243,422.48-780,734.43

Finding the Fourth Proportional to 903,298.36, 1,243,422.48 and 780,734.43

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Solution

The fourth proportional to 903,298.36, 1,243,422.48 and 780,734.43 is: 1,074,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,298.36 : 1,243,422.48 = 780,734.43 : x
  2. Step 2: Convert to fraction form
    903,298.36/1,243,422.48 = 780,734.43/x
  3. Step 3: Cross multiply
    903,298.36x = 1,243,422.48 × 780,734.43
  4. Step 4: Simplify right side
    903,298.36x = 970,782,741,171.99
  5. Step 5: Solve for x
    x = 970,782,741,171.99/903,298.36
  6. Step 6: Final answer
    x = 1,074,708.85

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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.