Home / 1,286,426.80-1,775,378.01-713,651.50

Finding the Fourth Proportional to 1,286,426.80, 1,775,378.01 and 713,651.50

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Solution

The fourth proportional to 1,286,426.80, 1,775,378.01 and 713,651.50 is: 984,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,426.80 : 1,775,378.01 = 713,651.50 : x
  2. Step 2: Convert to fraction form
    1,286,426.80/1,775,378.01 = 713,651.50/x
  3. Step 3: Cross multiply
    1,286,426.80x = 1,775,378.01 × 713,651.50
  4. Step 4: Simplify right side
    1,286,426.80x = 1,267,001,179,903.51
  5. Step 5: Solve for x
    x = 1,267,001,179,903.51/1,286,426.80
  6. Step 6: Final answer
    x = 984,899.55

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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.