Home / 499,923.54-689,877.33-285,132.81

Finding the Fourth Proportional to 499,923.54, 689,877.33 and 285,132.81

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Solution

The fourth proportional to 499,923.54, 689,877.33 and 285,132.81 is: 393,473.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,923.54 : 689,877.33 = 285,132.81 : x
  2. Step 2: Convert to fraction form
    499,923.54/689,877.33 = 285,132.81/x
  3. Step 3: Cross multiply
    499,923.54x = 689,877.33 × 285,132.81
  4. Step 4: Simplify right side
    499,923.54x = 196,706,661,658.20
  5. Step 5: Solve for x
    x = 196,706,661,658.20/499,923.54
  6. Step 6: Final answer
    x = 393,473.49

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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.