Home / 1,970,147.70-2,952,925.20-905,297.40

Finding the Fourth Proportional to 1,970,147.70, 2,952,925.20 and 905,297.40

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Solution

The fourth proportional to 1,970,147.70, 2,952,925.20 and 905,297.40 is: 1,356,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,147.70 : 2,952,925.20 = 905,297.40 : x
  2. Step 2: Convert to fraction form
    1,970,147.70/2,952,925.20 = 905,297.40/x
  3. Step 3: Cross multiply
    1,970,147.70x = 2,952,925.20 × 905,297.40
  4. Step 4: Simplify right side
    1,970,147.70x = 2,673,275,505,954.48
  5. Step 5: Solve for x
    x = 2,673,275,505,954.48/1,970,147.70
  6. Step 6: Final answer
    x = 1,356,890.91

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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.