Home / 456,218.60-684,716.70-203,887.40

Finding the Fourth Proportional to 456,218.60, 684,716.70 and 203,887.40

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Solution

The fourth proportional to 456,218.60, 684,716.70 and 203,887.40 is: 306,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,218.60 : 684,716.70 = 203,887.40 : x
  2. Step 2: Convert to fraction form
    456,218.60/684,716.70 = 203,887.40/x
  3. Step 3: Cross multiply
    456,218.60x = 684,716.70 × 203,887.40
  4. Step 4: Simplify right side
    456,218.60x = 139,605,107,699.58
  5. Step 5: Solve for x
    x = 139,605,107,699.58/456,218.60
  6. Step 6: Final answer
    x = 306,004.86

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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.