Home / 1,297,678.80-1,945,293.12-624,141.12

Finding the Fourth Proportional to 1,297,678.80, 1,945,293.12 and 624,141.12

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Solution

The fourth proportional to 1,297,678.80, 1,945,293.12 and 624,141.12 is: 935,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,678.80 : 1,945,293.12 = 624,141.12 : x
  2. Step 2: Convert to fraction form
    1,297,678.80/1,945,293.12 = 624,141.12/x
  3. Step 3: Cross multiply
    1,297,678.80x = 1,945,293.12 × 624,141.12
  4. Step 4: Simplify right side
    1,297,678.80x = 1,214,137,426,645.09
  5. Step 5: Solve for x
    x = 1,214,137,426,645.09/1,297,678.80
  6. Step 6: Final answer
    x = 935,622.46

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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.