Home / 1,158,849.86-1,599,216.36-642,640.10

Finding the Fourth Proportional to 1,158,849.86, 1,599,216.36 and 642,640.10

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Solution

The fourth proportional to 1,158,849.86, 1,599,216.36 and 642,640.10 is: 886,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,849.86 : 1,599,216.36 = 642,640.10 : x
  2. Step 2: Convert to fraction form
    1,158,849.86/1,599,216.36 = 642,640.10/x
  3. Step 3: Cross multiply
    1,158,849.86x = 1,599,216.36 × 642,640.10
  4. Step 4: Simplify right side
    1,158,849.86x = 1,027,720,561,512.04
  5. Step 5: Solve for x
    x = 1,027,720,561,512.04/1,158,849.86
  6. Step 6: Final answer
    x = 886,845.31

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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.