Home / 1,151,753.60-1,589,418.88-642,455.68

Finding the Fourth Proportional to 1,151,753.60, 1,589,418.88 and 642,455.68

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Solution

The fourth proportional to 1,151,753.60, 1,589,418.88 and 642,455.68 is: 886,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,753.60 : 1,589,418.88 = 642,455.68 : x
  2. Step 2: Convert to fraction form
    1,151,753.60/1,589,418.88 = 642,455.68/x
  3. Step 3: Cross multiply
    1,151,753.60x = 1,589,418.88 × 642,455.68
  4. Step 4: Simplify right side
    1,151,753.60x = 1,021,131,187,355.24
  5. Step 5: Solve for x
    x = 1,021,131,187,355.24/1,151,753.60
  6. Step 6: Final answer
    x = 886,588.23

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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.