Home / 1,787,939.80-2,679,576.90-828,284.20

Finding the Fourth Proportional to 1,787,939.80, 2,679,576.90 and 828,284.20

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Solution

The fourth proportional to 1,787,939.80, 2,679,576.90 and 828,284.20 is: 1,241,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,939.80 : 2,679,576.90 = 828,284.20 : x
  2. Step 2: Convert to fraction form
    1,787,939.80/2,679,576.90 = 828,284.20/x
  3. Step 3: Cross multiply
    1,787,939.80x = 2,679,576.90 × 828,284.20
  4. Step 4: Simplify right side
    1,787,939.80x = 2,219,451,208,954.98
  5. Step 5: Solve for x
    x = 2,219,451,208,954.98/1,787,939.80
  6. Step 6: Final answer
    x = 1,241,345.60

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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.