Home / 660,608.72-991,068.23-205,176.70

Finding the Fourth Proportional to 660,608.72, 991,068.23 and 205,176.70

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Solution

The fourth proportional to 660,608.72, 991,068.23 and 205,176.70 is: 307,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,608.72 : 991,068.23 = 205,176.70 : x
  2. Step 2: Convert to fraction form
    660,608.72/991,068.23 = 205,176.70/x
  3. Step 3: Cross multiply
    660,608.72x = 991,068.23 × 205,176.70
  4. Step 4: Simplify right side
    660,608.72x = 203,344,108,906.24
  5. Step 5: Solve for x
    x = 203,344,108,906.24/660,608.72
  6. Step 6: Final answer
    x = 307,813.24

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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.