Home / 1,311,754.32-1,963,187.15-806,635.22

Finding the Fourth Proportional to 1,311,754.32, 1,963,187.15 and 806,635.22

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Solution

The fourth proportional to 1,311,754.32, 1,963,187.15 and 806,635.22 is: 1,207,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,754.32 : 1,963,187.15 = 806,635.22 : x
  2. Step 2: Convert to fraction form
    1,311,754.32/1,963,187.15 = 806,635.22/x
  3. Step 3: Cross multiply
    1,311,754.32x = 1,963,187.15 × 806,635.22
  4. Step 4: Simplify right side
    1,311,754.32x = 1,583,575,884,792.31
  5. Step 5: Solve for x
    x = 1,583,575,884,792.31/1,311,754.32
  6. Step 6: Final answer
    x = 1,207,219.87

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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.