Home / 787,990.06-1,182,264.36-388,910.98

Finding the Fourth Proportional to 787,990.06, 1,182,264.36 and 388,910.98

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Solution

The fourth proportional to 787,990.06, 1,182,264.36 and 388,910.98 is: 583,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,990.06 : 1,182,264.36 = 388,910.98 : x
  2. Step 2: Convert to fraction form
    787,990.06/1,182,264.36 = 388,910.98/x
  3. Step 3: Cross multiply
    787,990.06x = 1,182,264.36 × 388,910.98
  4. Step 4: Simplify right side
    787,990.06x = 459,795,590,866.67
  5. Step 5: Solve for x
    x = 459,795,590,866.67/787,990.06
  6. Step 6: Final answer
    x = 583,504.30

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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.