Home / 1,313,431.12-1,970,258.52-414,632.40

Finding the Fourth Proportional to 1,313,431.12, 1,970,258.52 and 414,632.40

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Solution

The fourth proportional to 1,313,431.12, 1,970,258.52 and 414,632.40 is: 621,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,431.12 : 1,970,258.52 = 414,632.40 : x
  2. Step 2: Convert to fraction form
    1,313,431.12/1,970,258.52 = 414,632.40/x
  3. Step 3: Cross multiply
    1,313,431.12x = 1,970,258.52 × 414,632.40
  4. Step 4: Simplify right side
    1,313,431.12x = 816,933,018,768.05
  5. Step 5: Solve for x
    x = 816,933,018,768.05/1,313,431.12
  6. Step 6: Final answer
    x = 621,983.91

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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.