Home / 1,313,256-1,970,143.20-414,836.40

Finding the Fourth Proportional to 1,313,256, 1,970,143.20 and 414,836.40

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Solution

The fourth proportional to 1,313,256, 1,970,143.20 and 414,836.40 is: 622,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,256 : 1,970,143.20 = 414,836.40 : x
  2. Step 2: Convert to fraction form
    1,313,256/1,970,143.20 = 414,836.40/x
  3. Step 3: Cross multiply
    1,313,256x = 1,970,143.20 × 414,836.40
  4. Step 4: Simplify right side
    1,313,256x = 817,287,112,572.48
  5. Step 5: Solve for x
    x = 817,287,112,572.48/1,313,256
  6. Step 6: Final answer
    x = 622,336.48

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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.