Home / 1,286,362.80-1,775,289.69-713,587.50

Finding the Fourth Proportional to 1,286,362.80, 1,775,289.69 and 713,587.50

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Solution

The fourth proportional to 1,286,362.80, 1,775,289.69 and 713,587.50 is: 984,811.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,362.80 : 1,775,289.69 = 713,587.50 : x
  2. Step 2: Convert to fraction form
    1,286,362.80/1,775,289.69 = 713,587.50/x
  3. Step 3: Cross multiply
    1,286,362.80x = 1,775,289.69 × 713,587.50
  4. Step 4: Simplify right side
    1,286,362.80x = 1,266,824,531,662.88
  5. Step 5: Solve for x
    x = 1,266,824,531,662.88/1,286,362.80
  6. Step 6: Final answer
    x = 984,811.23

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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.