Home / 1,286,433.80-1,775,387.68-713,658.50

Finding the Fourth Proportional to 1,286,433.80, 1,775,387.68 and 713,658.50

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Solution

The fourth proportional to 1,286,433.80, 1,775,387.68 and 713,658.50 is: 984,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,433.80 : 1,775,387.68 = 713,658.50 : x
  2. Step 2: Convert to fraction form
    1,286,433.80/1,775,387.68 = 713,658.50/x
  3. Step 3: Cross multiply
    1,286,433.80x = 1,775,387.68 × 713,658.50
  4. Step 4: Simplify right side
    1,286,433.80x = 1,267,020,508,627.28
  5. Step 5: Solve for x
    x = 1,267,020,508,627.28/1,286,433.80
  6. Step 6: Final answer
    x = 984,909.22

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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.