Home / 1,511,674.40-2,086,031.92-938,702.28

Finding the Fourth Proportional to 1,511,674.40, 2,086,031.92 and 938,702.28

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Solution

The fourth proportional to 1,511,674.40, 2,086,031.92 and 938,702.28 is: 1,295,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,674.40 : 2,086,031.92 = 938,702.28 : x
  2. Step 2: Convert to fraction form
    1,511,674.40/2,086,031.92 = 938,702.28/x
  3. Step 3: Cross multiply
    1,511,674.40x = 2,086,031.92 × 938,702.28
  4. Step 4: Simplify right side
    1,511,674.40x = 1,958,162,919,456.78
  5. Step 5: Solve for x
    x = 1,958,162,919,456.78/1,511,674.40
  6. Step 6: Final answer
    x = 1,295,360.24

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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.