Home / 1,151,512.12-1,589,089.49-642,247.30

Finding the Fourth Proportional to 1,151,512.12, 1,589,089.49 and 642,247.30

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Solution

The fourth proportional to 1,151,512.12, 1,589,089.49 and 642,247.30 is: 886,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,512.12 : 1,589,089.49 = 642,247.30 : x
  2. Step 2: Convert to fraction form
    1,151,512.12/1,589,089.49 = 642,247.30/x
  3. Step 3: Cross multiply
    1,151,512.12x = 1,589,089.49 × 642,247.30
  4. Step 4: Simplify right side
    1,151,512.12x = 1,020,588,434,410.88
  5. Step 5: Solve for x
    x = 1,020,588,434,410.88/1,151,512.12
  6. Step 6: Final answer
    x = 886,302.82

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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.