Home / 935,394.20-1,290,847.56-521,948.42

Finding the Fourth Proportional to 935,394.20, 1,290,847.56 and 521,948.42

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Solution

The fourth proportional to 935,394.20, 1,290,847.56 and 521,948.42 is: 720,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,394.20 : 1,290,847.56 = 521,948.42 : x
  2. Step 2: Convert to fraction form
    935,394.20/1,290,847.56 = 521,948.42/x
  3. Step 3: Cross multiply
    935,394.20x = 1,290,847.56 × 521,948.42
  4. Step 4: Simplify right side
    935,394.20x = 673,755,844,402.86
  5. Step 5: Solve for x
    x = 673,755,844,402.86/935,394.20
  6. Step 6: Final answer
    x = 720,290.81

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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.