Home / 1,225,369.41-1,691,365.90-817,470.25

Finding the Fourth Proportional to 1,225,369.41, 1,691,365.90 and 817,470.25

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Solution

The fourth proportional to 1,225,369.41, 1,691,365.90 and 817,470.25 is: 1,128,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,369.41 : 1,691,365.90 = 817,470.25 : x
  2. Step 2: Convert to fraction form
    1,225,369.41/1,691,365.90 = 817,470.25/x
  3. Step 3: Cross multiply
    1,225,369.41x = 1,691,365.90 × 817,470.25
  4. Step 4: Simplify right side
    1,225,369.41x = 1,382,641,305,114.47
  5. Step 5: Solve for x
    x = 1,382,641,305,114.47/1,225,369.41
  6. Step 6: Final answer
    x = 1,128,346.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.