Home / 890,981.05-1,337,612.07-765,424.57

Finding the Fourth Proportional to 890,981.05, 1,337,612.07 and 765,424.57

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Solution

The fourth proportional to 890,981.05, 1,337,612.07 and 765,424.57 is: 1,149,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,981.05 : 1,337,612.07 = 765,424.57 : x
  2. Step 2: Convert to fraction form
    890,981.05/1,337,612.07 = 765,424.57/x
  3. Step 3: Cross multiply
    890,981.05x = 1,337,612.07 × 765,424.57
  4. Step 4: Simplify right side
    890,981.05x = 1,023,841,143,506.56
  5. Step 5: Solve for x
    x = 1,023,841,143,506.56/890,981.05
  6. Step 6: Final answer
    x = 1,149,116.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.