Home / 1,005,872.76-1,388,076.66-553,163.76

Finding the Fourth Proportional to 1,005,872.76, 1,388,076.66 and 553,163.76

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Solution

The fourth proportional to 1,005,872.76, 1,388,076.66 and 553,163.76 is: 763,350.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,872.76 : 1,388,076.66 = 553,163.76 : x
  2. Step 2: Convert to fraction form
    1,005,872.76/1,388,076.66 = 553,163.76/x
  3. Step 3: Cross multiply
    1,005,872.76x = 1,388,076.66 × 553,163.76
  4. Step 4: Simplify right side
    1,005,872.76x = 767,833,704,413.84
  5. Step 5: Solve for x
    x = 767,833,704,413.84/1,005,872.76
  6. Step 6: Final answer
    x = 763,350.73

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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.