Home / 1,380,438.64-2,071,156.24-482,012.80

Finding the Fourth Proportional to 1,380,438.64, 2,071,156.24 and 482,012.80

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Solution

The fourth proportional to 1,380,438.64, 2,071,156.24 and 482,012.80 is: 723,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,438.64 : 2,071,156.24 = 482,012.80 : x
  2. Step 2: Convert to fraction form
    1,380,438.64/2,071,156.24 = 482,012.80/x
  3. Step 3: Cross multiply
    1,380,438.64x = 2,071,156.24 × 482,012.80
  4. Step 4: Simplify right side
    1,380,438.64x = 998,323,818,479.87
  5. Step 5: Solve for x
    x = 998,323,818,479.87/1,380,438.64
  6. Step 6: Final answer
    x = 723,193.19

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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.