Home / 1,282,491-1,769,684.70-709,453.56

Finding the Fourth Proportional to 1,282,491, 1,769,684.70 and 709,453.56

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Solution

The fourth proportional to 1,282,491, 1,769,684.70 and 709,453.56 is: 978,961.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,491 : 1,769,684.70 = 709,453.56 : x
  2. Step 2: Convert to fraction form
    1,282,491/1,769,684.70 = 709,453.56/x
  3. Step 3: Cross multiply
    1,282,491x = 1,769,684.70 × 709,453.56
  4. Step 4: Simplify right side
    1,282,491x = 1,255,509,110,492.53
  5. Step 5: Solve for x
    x = 1,255,509,110,492.53/1,282,491
  6. Step 6: Final answer
    x = 978,961.34

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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.