Home / 1,412,917.32-1,949,877.09-809,421.96

Finding the Fourth Proportional to 1,412,917.32, 1,949,877.09 and 809,421.96

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Solution

The fourth proportional to 1,412,917.32, 1,949,877.09 and 809,421.96 is: 1,117,031.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,917.32 : 1,949,877.09 = 809,421.96 : x
  2. Step 2: Convert to fraction form
    1,412,917.32/1,949,877.09 = 809,421.96/x
  3. Step 3: Cross multiply
    1,412,917.32x = 1,949,877.09 × 809,421.96
  4. Step 4: Simplify right side
    1,412,917.32x = 1,578,273,335,946.90
  5. Step 5: Solve for x
    x = 1,578,273,335,946.90/1,412,917.32
  6. Step 6: Final answer
    x = 1,117,031.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.