Home / 1,282,408.44-1,769,754.78-709,459.80

Finding the Fourth Proportional to 1,282,408.44, 1,769,754.78 and 709,459.80

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Solution

The fourth proportional to 1,282,408.44, 1,769,754.78 and 709,459.80 is: 979,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,408.44 : 1,769,754.78 = 709,459.80 : x
  2. Step 2: Convert to fraction form
    1,282,408.44/1,769,754.78 = 709,459.80/x
  3. Step 3: Cross multiply
    1,282,408.44x = 1,769,754.78 × 709,459.80
  4. Step 4: Simplify right side
    1,282,408.44x = 1,255,569,872,267.84
  5. Step 5: Solve for x
    x = 1,255,569,872,267.84/1,282,408.44
  6. Step 6: Final answer
    x = 979,071.75

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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.