Home / 499,424.63-689,273.51-281,678.04

Finding the Fourth Proportional to 499,424.63, 689,273.51 and 281,678.04

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Solution

The fourth proportional to 499,424.63, 689,273.51 and 281,678.04 is: 388,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,424.63 : 689,273.51 = 281,678.04 : x
  2. Step 2: Convert to fraction form
    499,424.63/689,273.51 = 281,678.04/x
  3. Step 3: Cross multiply
    499,424.63x = 689,273.51 × 281,678.04
  4. Step 4: Simplify right side
    499,424.63x = 194,153,209,912.33
  5. Step 5: Solve for x
    x = 194,153,209,912.33/499,424.63
  6. Step 6: Final answer
    x = 388,753.78

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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.