Home / 2,878,279.71-3,972,031.91-1,589,122.59

Finding the Fourth Proportional to 2,878,279.71, 3,972,031.91 and 1,589,122.59

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Solution

The fourth proportional to 2,878,279.71, 3,972,031.91 and 1,589,122.59 is: 2,192,992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,279.71 : 3,972,031.91 = 1,589,122.59 : x
  2. Step 2: Convert to fraction form
    2,878,279.71/3,972,031.91 = 1,589,122.59/x
  3. Step 3: Cross multiply
    2,878,279.71x = 3,972,031.91 × 1,589,122.59
  4. Step 4: Simplify right side
    2,878,279.71x = 6,312,045,628,436.24
  5. Step 5: Solve for x
    x = 6,312,045,628,436.24/2,878,279.71
  6. Step 6: Final answer
    x = 2,192,992.43

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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.