Home / 2,187,573.39-3,018,851.45-1,207,512.65

Finding the Fourth Proportional to 2,187,573.39, 3,018,851.45 and 1,207,512.65

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Solution

The fourth proportional to 2,187,573.39, 3,018,851.45 and 1,207,512.65 is: 1,666,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,573.39 : 3,018,851.45 = 1,207,512.65 : x
  2. Step 2: Convert to fraction form
    2,187,573.39/3,018,851.45 = 1,207,512.65/x
  3. Step 3: Cross multiply
    2,187,573.39x = 3,018,851.45 × 1,207,512.65
  4. Step 4: Simplify right side
    2,187,573.39x = 3,645,301,293,214.02
  5. Step 5: Solve for x
    x = 3,645,301,293,214.02/2,187,573.39
  6. Step 6: Final answer
    x = 1,666,367.54

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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.