Home / 1,320,035.54-1,821,649.78-716,423.54

Finding the Fourth Proportional to 1,320,035.54, 1,821,649.78 and 716,423.54

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Solution

The fourth proportional to 1,320,035.54, 1,821,649.78 and 716,423.54 is: 988,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,035.54 : 1,821,649.78 = 716,423.54 : x
  2. Step 2: Convert to fraction form
    1,320,035.54/1,821,649.78 = 716,423.54/x
  3. Step 3: Cross multiply
    1,320,035.54x = 1,821,649.78 × 716,423.54
  4. Step 4: Simplify right side
    1,320,035.54x = 1,305,072,784,027.82
  5. Step 5: Solve for x
    x = 1,305,072,784,027.82/1,320,035.54
  6. Step 6: Final answer
    x = 988,664.88

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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.