Home / 1,687,682.44-2,328,993.28-913,312.72

Finding the Fourth Proportional to 1,687,682.44, 2,328,993.28 and 913,312.72

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Solution

The fourth proportional to 1,687,682.44, 2,328,993.28 and 913,312.72 is: 1,260,366.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,682.44 : 2,328,993.28 = 913,312.72 : x
  2. Step 2: Convert to fraction form
    1,687,682.44/2,328,993.28 = 913,312.72/x
  3. Step 3: Cross multiply
    1,687,682.44x = 2,328,993.28 × 913,312.72
  4. Step 4: Simplify right side
    1,687,682.44x = 2,127,099,187,418.52
  5. Step 5: Solve for x
    x = 2,127,099,187,418.52/1,687,682.44
  6. Step 6: Final answer
    x = 1,260,366.96

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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.