Home / 456,489.20-684,895.80-203,746.64

Finding the Fourth Proportional to 456,489.20, 684,895.80 and 203,746.64

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Solution

The fourth proportional to 456,489.20, 684,895.80 and 203,746.64 is: 305,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,489.20 : 684,895.80 = 203,746.64 : x
  2. Step 2: Convert to fraction form
    456,489.20/684,895.80 = 203,746.64/x
  3. Step 3: Cross multiply
    456,489.20x = 684,895.80 × 203,746.64
  4. Step 4: Simplify right side
    456,489.20x = 139,545,218,000.11
  5. Step 5: Solve for x
    x = 139,545,218,000.11/456,489.20
  6. Step 6: Final answer
    x = 305,692.27

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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.