Home / 499,942.67-689,903.46-285,152.00

Finding the Fourth Proportional to 499,942.67, 689,903.46 and 285,152.00

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Solution

The fourth proportional to 499,942.67, 689,903.46 and 285,152.00 is: 393,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,942.67 : 689,903.46 = 285,152.00 : x
  2. Step 2: Convert to fraction form
    499,942.67/689,903.46 = 285,152.00/x
  3. Step 3: Cross multiply
    499,942.67x = 689,903.46 × 285,152.00
  4. Step 4: Simplify right side
    499,942.67x = 196,727,347,976.40
  5. Step 5: Solve for x
    x = 196,727,347,976.40/499,942.67
  6. Step 6: Final answer
    x = 393,499.82

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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.