Home / 945,217.40-1,418,747.70-472,436.60

Finding the Fourth Proportional to 945,217.40, 1,418,747.70 and 472,436.60

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Solution

The fourth proportional to 945,217.40, 1,418,747.70 and 472,436.60 is: 709,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,217.40 : 1,418,747.70 = 472,436.60 : x
  2. Step 2: Convert to fraction form
    945,217.40/1,418,747.70 = 472,436.60/x
  3. Step 3: Cross multiply
    945,217.40x = 1,418,747.70 × 472,436.60
  4. Step 4: Simplify right side
    945,217.40x = 670,268,339,645.82
  5. Step 5: Solve for x
    x = 670,268,339,645.82/945,217.40
  6. Step 6: Final answer
    x = 709,115.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.