Home / 1,561,305.40-2,339,771.10-1,242,003.40

Finding the Fourth Proportional to 1,561,305.40, 2,339,771.10 and 1,242,003.40

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Solution

The fourth proportional to 1,561,305.40, 2,339,771.10 and 1,242,003.40 is: 1,861,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,305.40 : 2,339,771.10 = 1,242,003.40 : x
  2. Step 2: Convert to fraction form
    1,561,305.40/2,339,771.10 = 1,242,003.40/x
  3. Step 3: Cross multiply
    1,561,305.40x = 2,339,771.10 × 1,242,003.40
  4. Step 4: Simplify right side
    1,561,305.40x = 2,906,003,661,421.74
  5. Step 5: Solve for x
    x = 2,906,003,661,421.74/1,561,305.40
  6. Step 6: Final answer
    x = 1,861,265.36

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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.