Home / 1,132,640.25-1,562,691.72-642,528.96

Finding the Fourth Proportional to 1,132,640.25, 1,562,691.72 and 642,528.96

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Solution

The fourth proportional to 1,132,640.25, 1,562,691.72 and 642,528.96 is: 886,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,640.25 : 1,562,691.72 = 642,528.96 : x
  2. Step 2: Convert to fraction form
    1,132,640.25/1,562,691.72 = 642,528.96/x
  3. Step 3: Cross multiply
    1,132,640.25x = 1,562,691.72 × 642,528.96
  4. Step 4: Simplify right side
    1,132,640.25x = 1,004,074,685,652.21
  5. Step 5: Solve for x
    x = 1,004,074,685,652.21/1,132,640.25
  6. Step 6: Final answer
    x = 886,490.38

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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.