Home / 672,004.20-1,007,228.70-272,447.40

Finding the Fourth Proportional to 672,004.20, 1,007,228.70 and 272,447.40

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Solution

The fourth proportional to 672,004.20, 1,007,228.70 and 272,447.40 is: 408,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,004.20 : 1,007,228.70 = 272,447.40 : x
  2. Step 2: Convert to fraction form
    672,004.20/1,007,228.70 = 272,447.40/x
  3. Step 3: Cross multiply
    672,004.20x = 1,007,228.70 × 272,447.40
  4. Step 4: Simplify right side
    672,004.20x = 274,416,840,520.38
  5. Step 5: Solve for x
    x = 274,416,840,520.38/672,004.20
  6. Step 6: Final answer
    x = 408,355.84

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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.