Home / 935,390.21-1,290,842.03-521,944.43

Finding the Fourth Proportional to 935,390.21, 1,290,842.03 and 521,944.43

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Solution

The fourth proportional to 935,390.21, 1,290,842.03 and 521,944.43 is: 720,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,390.21 : 1,290,842.03 = 521,944.43 : x
  2. Step 2: Convert to fraction form
    935,390.21/1,290,842.03 = 521,944.43/x
  3. Step 3: Cross multiply
    935,390.21x = 1,290,842.03 × 521,944.43
  4. Step 4: Simplify right side
    935,390.21x = 673,747,802,419.04
  5. Step 5: Solve for x
    x = 673,747,802,419.04/935,390.21
  6. Step 6: Final answer
    x = 720,285.29

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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.