Home / 2,600,518.30-3,900,789.60-917,621.80

Finding the Fourth Proportional to 2,600,518.30, 3,900,789.60 and 917,621.80

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Solution

The fourth proportional to 2,600,518.30, 3,900,789.60 and 917,621.80 is: 1,376,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600,518.30 : 3,900,789.60 = 917,621.80 : x
  2. Step 2: Convert to fraction form
    2,600,518.30/3,900,789.60 = 917,621.80/x
  3. Step 3: Cross multiply
    2,600,518.30x = 3,900,789.60 × 917,621.80
  4. Step 4: Simplify right side
    2,600,518.30x = 3,579,449,574,173.28
  5. Step 5: Solve for x
    x = 3,579,449,574,173.28/2,600,518.30
  6. Step 6: Final answer
    x = 1,376,436.99

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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.