Home / 1,238,965.72-1,709,799-695,140.83

Finding the Fourth Proportional to 1,238,965.72, 1,709,799 and 695,140.83

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Solution

The fourth proportional to 1,238,965.72, 1,709,799 and 695,140.83 is: 959,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,965.72 : 1,709,799 = 695,140.83 : x
  2. Step 2: Convert to fraction form
    1,238,965.72/1,709,799 = 695,140.83/x
  3. Step 3: Cross multiply
    1,238,965.72x = 1,709,799 × 695,140.83
  4. Step 4: Simplify right side
    1,238,965.72x = 1,188,551,095,993.17
  5. Step 5: Solve for x
    x = 1,188,551,095,993.17/1,238,965.72
  6. Step 6: Final answer
    x = 959,309.11

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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.