Home / 1,314,478.40-1,972,066.92-415,936.12

Finding the Fourth Proportional to 1,314,478.40, 1,972,066.92 and 415,936.12

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Solution

The fourth proportional to 1,314,478.40, 1,972,066.92 and 415,936.12 is: 624,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,478.40 : 1,972,066.92 = 415,936.12 : x
  2. Step 2: Convert to fraction form
    1,314,478.40/1,972,066.92 = 415,936.12/x
  3. Step 3: Cross multiply
    1,314,478.40x = 1,972,066.92 × 415,936.12
  4. Step 4: Simplify right side
    1,314,478.40x = 820,253,863,085.15
  5. Step 5: Solve for x
    x = 820,253,863,085.15/1,314,478.40
  6. Step 6: Final answer
    x = 624,014.71

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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.