Home / 1,298,403.54-1,791,739.31-725,431.41

Finding the Fourth Proportional to 1,298,403.54, 1,791,739.31 and 725,431.41

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Solution

The fourth proportional to 1,298,403.54, 1,791,739.31 and 725,431.41 is: 1,001,063.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,403.54 : 1,791,739.31 = 725,431.41 : x
  2. Step 2: Convert to fraction form
    1,298,403.54/1,791,739.31 = 725,431.41/x
  3. Step 3: Cross multiply
    1,298,403.54x = 1,791,739.31 × 725,431.41
  4. Step 4: Simplify right side
    1,298,403.54x = 1,299,783,970,378.57
  5. Step 5: Solve for x
    x = 1,299,783,970,378.57/1,298,403.54
  6. Step 6: Final answer
    x = 1,001,063.18

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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.