Home / 1,213,419.80-1,820,157.87-314,896.97

Finding the Fourth Proportional to 1,213,419.80, 1,820,157.87 and 314,896.97

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Solution

The fourth proportional to 1,213,419.80, 1,820,157.87 and 314,896.97 is: 472,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,419.80 : 1,820,157.87 = 314,896.97 : x
  2. Step 2: Convert to fraction form
    1,213,419.80/1,820,157.87 = 314,896.97/x
  3. Step 3: Cross multiply
    1,213,419.80x = 1,820,157.87 × 314,896.97
  4. Step 4: Simplify right side
    1,213,419.80x = 573,162,198,184.65
  5. Step 5: Solve for x
    x = 573,162,198,184.65/1,213,419.80
  6. Step 6: Final answer
    x = 472,352.77

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1.5x scale

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.