Home / 1,290,429.12-1,935,250.08-343,676.88

Finding the Fourth Proportional to 1,290,429.12, 1,935,250.08 and 343,676.88

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Solution

The fourth proportional to 1,290,429.12, 1,935,250.08 and 343,676.88 is: 515,410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,429.12 : 1,935,250.08 = 343,676.88 : x
  2. Step 2: Convert to fraction form
    1,290,429.12/1,935,250.08 = 343,676.88/x
  3. Step 3: Cross multiply
    1,290,429.12x = 1,935,250.08 × 343,676.88
  4. Step 4: Simplify right side
    1,290,429.12x = 665,100,709,514.15
  5. Step 5: Solve for x
    x = 665,100,709,514.15/1,290,429.12
  6. Step 6: Final answer
    x = 515,410.49

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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.