Home / 1,006,385.45-1,388,800.49-749,411.73

Finding the Fourth Proportional to 1,006,385.45, 1,388,800.49 and 749,411.73

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Solution

The fourth proportional to 1,006,385.45, 1,388,800.49 and 749,411.73 is: 1,034,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,385.45 : 1,388,800.49 = 749,411.73 : x
  2. Step 2: Convert to fraction form
    1,006,385.45/1,388,800.49 = 749,411.73/x
  3. Step 3: Cross multiply
    1,006,385.45x = 1,388,800.49 × 749,411.73
  4. Step 4: Simplify right side
    1,006,385.45x = 1,040,783,374,088.69
  5. Step 5: Solve for x
    x = 1,040,783,374,088.69/1,006,385.45
  6. Step 6: Final answer
    x = 1,034,179.68

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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.