Home / 1,282,309.53-1,769,588.42-709,388.43

Finding the Fourth Proportional to 1,282,309.53, 1,769,588.42 and 709,388.43

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Solution

The fourth proportional to 1,282,309.53, 1,769,588.42 and 709,388.43 is: 978,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,309.53 : 1,769,588.42 = 709,388.43 : x
  2. Step 2: Convert to fraction form
    1,282,309.53/1,769,588.42 = 709,388.43/x
  3. Step 3: Cross multiply
    1,282,309.53x = 1,769,588.42 × 709,388.43
  4. Step 4: Simplify right side
    1,282,309.53x = 1,255,325,551,009.98
  5. Step 5: Solve for x
    x = 1,255,325,551,009.98/1,282,309.53
  6. Step 6: Final answer
    x = 978,956.74

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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.