Home / 499,687.04-689,550.72-284,896.28

Finding the Fourth Proportional to 499,687.04, 689,550.72 and 284,896.28

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Solution

The fourth proportional to 499,687.04, 689,550.72 and 284,896.28 is: 393,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,687.04 : 689,550.72 = 284,896.28 : x
  2. Step 2: Convert to fraction form
    499,687.04/689,550.72 = 284,896.28/x
  3. Step 3: Cross multiply
    499,687.04x = 689,550.72 × 284,896.28
  4. Step 4: Simplify right side
    499,687.04x = 196,450,434,999.32
  5. Step 5: Solve for x
    x = 196,450,434,999.32/499,687.04
  6. Step 6: Final answer
    x = 393,146.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.