Home / 456,122.08-684,183.12-123,689.44

Finding the Fourth Proportional to 456,122.08, 684,183.12 and 123,689.44

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Solution

The fourth proportional to 456,122.08, 684,183.12 and 123,689.44 is: 185,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,122.08 : 684,183.12 = 123,689.44 : x
  2. Step 2: Convert to fraction form
    456,122.08/684,183.12 = 123,689.44/x
  3. Step 3: Cross multiply
    456,122.08x = 684,183.12 × 123,689.44
  4. Step 4: Simplify right side
    456,122.08x = 84,626,226,970.25
  5. Step 5: Solve for x
    x = 84,626,226,970.25/456,122.08
  6. Step 6: Final answer
    x = 185,534.16

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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.