Home / 456,245.10-684,756.45-203,913.90

Finding the Fourth Proportional to 456,245.10, 684,756.45 and 203,913.90

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Solution

The fourth proportional to 456,245.10, 684,756.45 and 203,913.90 is: 306,044.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,245.10 : 684,756.45 = 203,913.90 : x
  2. Step 2: Convert to fraction form
    456,245.10/684,756.45 = 203,913.90/x
  3. Step 3: Cross multiply
    456,245.10x = 684,756.45 × 203,913.90
  4. Step 4: Simplify right side
    456,245.10x = 139,631,358,269.66
  5. Step 5: Solve for x
    x = 139,631,358,269.66/456,245.10
  6. Step 6: Final answer
    x = 306,044.62

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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.