Home / 513,935.16-769,780.08-213,504.84

Finding the Fourth Proportional to 513,935.16, 769,780.08 and 213,504.84

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Solution

The fourth proportional to 513,935.16, 769,780.08 and 213,504.84 is: 319,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,935.16 : 769,780.08 = 213,504.84 : x
  2. Step 2: Convert to fraction form
    513,935.16/769,780.08 = 213,504.84/x
  3. Step 3: Cross multiply
    513,935.16x = 769,780.08 × 213,504.84
  4. Step 4: Simplify right side
    513,935.16x = 164,351,772,815.59
  5. Step 5: Solve for x
    x = 164,351,772,815.59/513,935.16
  6. Step 6: Final answer
    x = 319,790.87

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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.