Home / 1,438,677.32-1,984,658.15-1,004,006.21

Finding the Fourth Proportional to 1,438,677.32, 1,984,658.15 and 1,004,006.21

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Solution

The fourth proportional to 1,438,677.32, 1,984,658.15 and 1,004,006.21 is: 1,385,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,677.32 : 1,984,658.15 = 1,004,006.21 : x
  2. Step 2: Convert to fraction form
    1,438,677.32/1,984,658.15 = 1,004,006.21/x
  3. Step 3: Cross multiply
    1,438,677.32x = 1,984,658.15 × 1,004,006.21
  4. Step 4: Simplify right side
    1,438,677.32x = 1,992,609,099,913.84
  5. Step 5: Solve for x
    x = 1,992,609,099,913.84/1,438,677.32
  6. Step 6: Final answer
    x = 1,385,028.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.