Home / 1,320,247.92-1,821,809.16-747,188.31

Finding the Fourth Proportional to 1,320,247.92, 1,821,809.16 and 747,188.31

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Solution

The fourth proportional to 1,320,247.92, 1,821,809.16 and 747,188.31 is: 1,031,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,247.92 : 1,821,809.16 = 747,188.31 : x
  2. Step 2: Convert to fraction form
    1,320,247.92/1,821,809.16 = 747,188.31/x
  3. Step 3: Cross multiply
    1,320,247.92x = 1,821,809.16 × 747,188.31
  4. Step 4: Simplify right side
    1,320,247.92x = 1,361,234,507,402.92
  5. Step 5: Solve for x
    x = 1,361,234,507,402.92/1,320,247.92
  6. Step 6: Final answer
    x = 1,031,044.61

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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.