Home / 1,310,617.76-1,965,924.96-412,138.40

Finding the Fourth Proportional to 1,310,617.76, 1,965,924.96 and 412,138.40

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Solution

The fourth proportional to 1,310,617.76, 1,965,924.96 and 412,138.40 is: 618,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,617.76 : 1,965,924.96 = 412,138.40 : x
  2. Step 2: Convert to fraction form
    1,310,617.76/1,965,924.96 = 412,138.40/x
  3. Step 3: Cross multiply
    1,310,617.76x = 1,965,924.96 × 412,138.40
  4. Step 4: Simplify right side
    1,310,617.76x = 810,233,167,534.46
  5. Step 5: Solve for x
    x = 810,233,167,534.46/1,310,617.76
  6. Step 6: Final answer
    x = 618,207.07

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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.