Home / 1,313,670.40-1,970,493.80-415,112.29

Finding the Fourth Proportional to 1,313,670.40, 1,970,493.80 and 415,112.29

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Solution

The fourth proportional to 1,313,670.40, 1,970,493.80 and 415,112.29 is: 622,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,670.40 : 1,970,493.80 = 415,112.29 : x
  2. Step 2: Convert to fraction form
    1,313,670.40/1,970,493.80 = 415,112.29/x
  3. Step 3: Cross multiply
    1,313,670.40x = 1,970,493.80 × 415,112.29
  4. Step 4: Simplify right side
    1,313,670.40x = 817,976,186,747.01
  5. Step 5: Solve for x
    x = 817,976,186,747.01/1,313,670.40
  6. Step 6: Final answer
    x = 622,664.70

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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.