Home / 388,635.44-583,045.40-122,395.20

Finding the Fourth Proportional to 388,635.44, 583,045.40 and 122,395.20

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Solution

The fourth proportional to 388,635.44, 583,045.40 and 122,395.20 is: 183,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,635.44 : 583,045.40 = 122,395.20 : x
  2. Step 2: Convert to fraction form
    388,635.44/583,045.40 = 122,395.20/x
  3. Step 3: Cross multiply
    388,635.44x = 583,045.40 × 122,395.20
  4. Step 4: Simplify right side
    388,635.44x = 71,361,958,342.08
  5. Step 5: Solve for x
    x = 71,361,958,342.08/388,635.44
  6. Step 6: Final answer
    x = 183,621.85

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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.