Home / 796,130.78-1,098,610.70-438,434.78

Finding the Fourth Proportional to 796,130.78, 1,098,610.70 and 438,434.78

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Solution

The fourth proportional to 796,130.78, 1,098,610.70 and 438,434.78 is: 605,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    796,130.78 : 1,098,610.70 = 438,434.78 : x
  2. Step 2: Convert to fraction form
    796,130.78/1,098,610.70 = 438,434.78/x
  3. Step 3: Cross multiply
    796,130.78x = 1,098,610.70 × 438,434.78
  4. Step 4: Simplify right side
    796,130.78x = 481,669,140,560.15
  5. Step 5: Solve for x
    x = 481,669,140,560.15/796,130.78
  6. Step 6: Final answer
    x = 605,012.58

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1.5x scale

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.