Home / 789,990.76-1,185,374.94-369,205.48

Finding the Fourth Proportional to 789,990.76, 1,185,374.94 and 369,205.48

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Solution

The fourth proportional to 789,990.76, 1,185,374.94 and 369,205.48 is: 553,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,990.76 : 1,185,374.94 = 369,205.48 : x
  2. Step 2: Convert to fraction form
    789,990.76/1,185,374.94 = 369,205.48/x
  3. Step 3: Cross multiply
    789,990.76x = 1,185,374.94 × 369,205.48
  4. Step 4: Simplify right side
    789,990.76x = 437,646,923,702.67
  5. Step 5: Solve for x
    x = 437,646,923,702.67/789,990.76
  6. Step 6: Final answer
    x = 553,989.93

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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.