Home / 1,320,976.76-1,823,505.96-891,838.16

Finding the Fourth Proportional to 1,320,976.76, 1,823,505.96 and 891,838.16

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Solution

The fourth proportional to 1,320,976.76, 1,823,505.96 and 891,838.16 is: 1,231,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,976.76 : 1,823,505.96 = 891,838.16 : x
  2. Step 2: Convert to fraction form
    1,320,976.76/1,823,505.96 = 891,838.16/x
  3. Step 3: Cross multiply
    1,320,976.76x = 1,823,505.96 × 891,838.16
  4. Step 4: Simplify right side
    1,320,976.76x = 1,626,272,200,115.43
  5. Step 5: Solve for x
    x = 1,626,272,200,115.43/1,320,976.76
  6. Step 6: Final answer
    x = 1,231,113.41

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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.