Home / 2,600,516.80-3,900,787.35-917,620.30

Finding the Fourth Proportional to 2,600,516.80, 3,900,787.35 and 917,620.30

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Solution

The fourth proportional to 2,600,516.80, 3,900,787.35 and 917,620.30 is: 1,376,434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600,516.80 : 3,900,787.35 = 917,620.30 : x
  2. Step 2: Convert to fraction form
    2,600,516.80/3,900,787.35 = 917,620.30/x
  3. Step 3: Cross multiply
    2,600,516.80x = 3,900,787.35 × 917,620.30
  4. Step 4: Simplify right side
    2,600,516.80x = 3,579,441,658,343.21
  5. Step 5: Solve for x
    x = 3,579,441,658,343.21/2,600,516.80
  6. Step 6: Final answer
    x = 1,376,434.74

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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.