Home / 642,099.08-963,158.03-305,174.11

Finding the Fourth Proportional to 642,099.08, 963,158.03 and 305,174.11

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Solution

The fourth proportional to 642,099.08, 963,158.03 and 305,174.11 is: 457,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,099.08 : 963,158.03 = 305,174.11 : x
  2. Step 2: Convert to fraction form
    642,099.08/963,158.03 = 305,174.11/x
  3. Step 3: Cross multiply
    642,099.08x = 963,158.03 × 305,174.11
  4. Step 4: Simplify right side
    642,099.08x = 293,930,894,594.60
  5. Step 5: Solve for x
    x = 293,930,894,594.60/642,099.08
  6. Step 6: Final answer
    x = 457,765.64

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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.