Home / 1,158,847.86-1,599,213.60-642,638.10

Finding the Fourth Proportional to 1,158,847.86, 1,599,213.60 and 642,638.10

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Solution

The fourth proportional to 1,158,847.86, 1,599,213.60 and 642,638.10 is: 886,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,847.86 : 1,599,213.60 = 642,638.10 : x
  2. Step 2: Convert to fraction form
    1,158,847.86/1,599,213.60 = 642,638.10/x
  3. Step 3: Cross multiply
    1,158,847.86x = 1,599,213.60 × 642,638.10
  4. Step 4: Simplify right side
    1,158,847.86x = 1,027,715,589,398.16
  5. Step 5: Solve for x
    x = 1,027,715,589,398.16/1,158,847.86
  6. Step 6: Final answer
    x = 886,842.55

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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.