Home / 1,253,056.42-1,728,806.25-709,138.18

Finding the Fourth Proportional to 1,253,056.42, 1,728,806.25 and 709,138.18

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Solution

The fourth proportional to 1,253,056.42, 1,728,806.25 and 709,138.18 is: 978,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,056.42 : 1,728,806.25 = 709,138.18 : x
  2. Step 2: Convert to fraction form
    1,253,056.42/1,728,806.25 = 709,138.18/x
  3. Step 3: Cross multiply
    1,253,056.42x = 1,728,806.25 × 709,138.18
  4. Step 4: Simplify right side
    1,253,056.42x = 1,225,962,517,697.63
  5. Step 5: Solve for x
    x = 1,225,962,517,697.63/1,253,056.42
  6. Step 6: Final answer
    x = 978,377.75

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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.