Home / 762,105.12-1,143,923.14-677,271.38

Finding the Fourth Proportional to 762,105.12, 1,143,923.14 and 677,271.38

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Solution

The fourth proportional to 762,105.12, 1,143,923.14 and 677,271.38 is: 1,016,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,105.12 : 1,143,923.14 = 677,271.38 : x
  2. Step 2: Convert to fraction form
    762,105.12/1,143,923.14 = 677,271.38/x
  3. Step 3: Cross multiply
    762,105.12x = 1,143,923.14 × 677,271.38
  4. Step 4: Simplify right side
    762,105.12x = 774,746,403,641.73
  5. Step 5: Solve for x
    x = 774,746,403,641.73/762,105.12
  6. Step 6: Final answer
    x = 1,016,587.32

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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.