Home / 1,242,556.52-1,717,783.74-1,231,189.61

Finding the Fourth Proportional to 1,242,556.52, 1,717,783.74 and 1,231,189.61

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Solution

The fourth proportional to 1,242,556.52, 1,717,783.74 and 1,231,189.61 is: 1,702,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,556.52 : 1,717,783.74 = 1,231,189.61 : x
  2. Step 2: Convert to fraction form
    1,242,556.52/1,717,783.74 = 1,231,189.61/x
  3. Step 3: Cross multiply
    1,242,556.52x = 1,717,783.74 × 1,231,189.61
  4. Step 4: Simplify right side
    1,242,556.52x = 2,114,917,484,326.02
  5. Step 5: Solve for x
    x = 2,114,917,484,326.02/1,242,556.52
  6. Step 6: Final answer
    x = 1,702,069.45

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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.