Home / 1,132,990.81-1,563,175.15-642,879.25

Finding the Fourth Proportional to 1,132,990.81, 1,563,175.15 and 642,879.25

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Solution

The fourth proportional to 1,132,990.81, 1,563,175.15 and 642,879.25 is: 886,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,990.81 : 1,563,175.15 = 642,879.25 : x
  2. Step 2: Convert to fraction form
    1,132,990.81/1,563,175.15 = 642,879.25/x
  3. Step 3: Cross multiply
    1,132,990.81x = 1,563,175.15 × 642,879.25
  4. Step 4: Simplify right side
    1,132,990.81x = 1,004,932,862,535.50
  5. Step 5: Solve for x
    x = 1,004,932,862,535.50/1,132,990.81
  6. Step 6: Final answer
    x = 886,973.54

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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.