Home / 515,035.46-772,650.10-207,310.96

Finding the Fourth Proportional to 515,035.46, 772,650.10 and 207,310.96

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Solution

The fourth proportional to 515,035.46, 772,650.10 and 207,310.96 is: 311,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,035.46 : 772,650.10 = 207,310.96 : x
  2. Step 2: Convert to fraction form
    515,035.46/772,650.10 = 207,310.96/x
  3. Step 3: Cross multiply
    515,035.46x = 772,650.10 × 207,310.96
  4. Step 4: Simplify right side
    515,035.46x = 160,178,833,975.10
  5. Step 5: Solve for x
    x = 160,178,833,975.10/515,035.46
  6. Step 6: Final answer
    x = 311,005.45

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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.