Home / 914,465.43-1,261,982.58-521,990.37

Finding the Fourth Proportional to 914,465.43, 1,261,982.58 and 521,990.37

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Solution

The fourth proportional to 914,465.43, 1,261,982.58 and 521,990.37 is: 720,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,465.43 : 1,261,982.58 = 521,990.37 : x
  2. Step 2: Convert to fraction form
    914,465.43/1,261,982.58 = 521,990.37/x
  3. Step 3: Cross multiply
    914,465.43x = 1,261,982.58 × 521,990.37
  4. Step 4: Simplify right side
    914,465.43x = 658,742,753,867.76
  5. Step 5: Solve for x
    x = 658,742,753,867.76/914,465.43
  6. Step 6: Final answer
    x = 720,358.29

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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.