Home / 1,132,992.32-1,563,177.21-642,880.76

Finding the Fourth Proportional to 1,132,992.32, 1,563,177.21 and 642,880.76

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Solution

The fourth proportional to 1,132,992.32, 1,563,177.21 and 642,880.76 is: 886,975.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,992.32 : 1,563,177.21 = 642,880.76 : x
  2. Step 2: Convert to fraction form
    1,132,992.32/1,563,177.21 = 642,880.76/x
  3. Step 3: Cross multiply
    1,132,992.32x = 1,563,177.21 × 642,880.76
  4. Step 4: Simplify right side
    1,132,992.32x = 1,004,936,544,963.59
  5. Step 5: Solve for x
    x = 1,004,936,544,963.59/1,132,992.32
  6. Step 6: Final answer
    x = 886,975.61

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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.