Home / 1,331,846.70-1,995,473.70-620,415.60

Finding the Fourth Proportional to 1,331,846.70, 1,995,473.70 and 620,415.60

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Solution

The fourth proportional to 1,331,846.70, 1,995,473.70 and 620,415.60 is: 929,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,846.70 : 1,995,473.70 = 620,415.60 : x
  2. Step 2: Convert to fraction form
    1,331,846.70/1,995,473.70 = 620,415.60/x
  3. Step 3: Cross multiply
    1,331,846.70x = 1,995,473.70 × 620,415.60
  4. Step 4: Simplify right side
    1,331,846.70x = 1,238,023,012,869.72
  5. Step 5: Solve for x
    x = 1,238,023,012,869.72/1,331,846.70
  6. Step 6: Final answer
    x = 929,553.69

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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.