Home / 1,409,993.82-2,115,072.77-399,031.20

Finding the Fourth Proportional to 1,409,993.82, 2,115,072.77 and 399,031.20

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Solution

The fourth proportional to 1,409,993.82, 2,115,072.77 and 399,031.20 is: 598,570.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,993.82 : 2,115,072.77 = 399,031.20 : x
  2. Step 2: Convert to fraction form
    1,409,993.82/2,115,072.77 = 399,031.20/x
  3. Step 3: Cross multiply
    1,409,993.82x = 2,115,072.77 × 399,031.20
  4. Step 4: Simplify right side
    1,409,993.82x = 843,980,025,500.42
  5. Step 5: Solve for x
    x = 843,980,025,500.42/1,409,993.82
  6. Step 6: Final answer
    x = 598,570.02

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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.