Home / 388,974.19-583,505.07-122,655.91

Finding the Fourth Proportional to 388,974.19, 583,505.07 and 122,655.91

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Solution

The fourth proportional to 388,974.19, 583,505.07 and 122,655.91 is: 183,997.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,974.19 : 583,505.07 = 122,655.91 : x
  2. Step 2: Convert to fraction form
    388,974.19/583,505.07 = 122,655.91/x
  3. Step 3: Cross multiply
    388,974.19x = 583,505.07 × 122,655.91
  4. Step 4: Simplify right side
    388,974.19x = 71,570,345,350.46
  5. Step 5: Solve for x
    x = 71,570,345,350.46/388,974.19
  6. Step 6: Final answer
    x = 183,997.67

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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.