Home / 1,280,340.38-1,766,719.14-707,346.38

Finding the Fourth Proportional to 1,280,340.38, 1,766,719.14 and 707,346.38

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Solution

The fourth proportional to 1,280,340.38, 1,766,719.14 and 707,346.38 is: 976,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,340.38 : 1,766,719.14 = 707,346.38 : x
  2. Step 2: Convert to fraction form
    1,280,340.38/1,766,719.14 = 707,346.38/x
  3. Step 3: Cross multiply
    1,280,340.38x = 1,766,719.14 × 707,346.38
  4. Step 4: Simplify right side
    1,280,340.38x = 1,249,682,388,155.71
  5. Step 5: Solve for x
    x = 1,249,682,388,155.71/1,280,340.38
  6. Step 6: Final answer
    x = 976,054.81

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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.