Home / 1,331,313.48-1,997,468.88-691,217.64

Finding the Fourth Proportional to 1,331,313.48, 1,997,468.88 and 691,217.64

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Solution

The fourth proportional to 1,331,313.48, 1,997,468.88 and 691,217.64 is: 1,037,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,313.48 : 1,997,468.88 = 691,217.64 : x
  2. Step 2: Convert to fraction form
    1,331,313.48/1,997,468.88 = 691,217.64/x
  3. Step 3: Cross multiply
    1,331,313.48x = 1,997,468.88 × 691,217.64
  4. Step 4: Simplify right side
    1,331,313.48x = 1,380,685,725,207.04
  5. Step 5: Solve for x
    x = 1,380,685,725,207.04/1,331,313.48
  6. Step 6: Final answer
    x = 1,037,085.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.