Home / 787,995.06-1,182,271.86-388,915.98

Finding the Fourth Proportional to 787,995.06, 1,182,271.86 and 388,915.98

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Solution

The fourth proportional to 787,995.06, 1,182,271.86 and 388,915.98 is: 583,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,995.06 : 1,182,271.86 = 388,915.98 : x
  2. Step 2: Convert to fraction form
    787,995.06/1,182,271.86 = 388,915.98/x
  3. Step 3: Cross multiply
    787,995.06x = 1,182,271.86 × 388,915.98
  4. Step 4: Simplify right side
    787,995.06x = 459,804,419,058.32
  5. Step 5: Solve for x
    x = 459,804,419,058.32/787,995.06
  6. Step 6: Final answer
    x = 583,511.80

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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.