Home / 2,518,890-3,778,896.30-921,417.72

Finding the Fourth Proportional to 2,518,890, 3,778,896.30 and 921,417.72

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Solution

The fourth proportional to 2,518,890, 3,778,896.30 and 921,417.72 is: 1,382,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518,890 : 3,778,896.30 = 921,417.72 : x
  2. Step 2: Convert to fraction form
    2,518,890/3,778,896.30 = 921,417.72/x
  3. Step 3: Cross multiply
    2,518,890x = 3,778,896.30 × 921,417.72
  4. Step 4: Simplify right side
    2,518,890x = 3,481,942,012,862.44
  5. Step 5: Solve for x
    x = 3,481,942,012,862.44/2,518,890
  6. Step 6: Final answer
    x = 1,382,331.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.