Home / 1,345,334.64-1,855,512.03-861,945.06

Finding the Fourth Proportional to 1,345,334.64, 1,855,512.03 and 861,945.06

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Solution

The fourth proportional to 1,345,334.64, 1,855,512.03 and 861,945.06 is: 1,188,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,334.64 : 1,855,512.03 = 861,945.06 : x
  2. Step 2: Convert to fraction form
    1,345,334.64/1,855,512.03 = 861,945.06/x
  3. Step 3: Cross multiply
    1,345,334.64x = 1,855,512.03 × 861,945.06
  4. Step 4: Simplify right side
    1,345,334.64x = 1,599,349,428,029.07
  5. Step 5: Solve for x
    x = 1,599,349,428,029.07/1,345,334.64
  6. Step 6: Final answer
    x = 1,188,811.60

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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.