Home / 816,979.65-1,225,478.39-248,453.21

Finding the Fourth Proportional to 816,979.65, 1,225,478.39 and 248,453.21

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Solution

The fourth proportional to 816,979.65, 1,225,478.39 and 248,453.21 is: 372,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,979.65 : 1,225,478.39 = 248,453.21 : x
  2. Step 2: Convert to fraction form
    816,979.65/1,225,478.39 = 248,453.21/x
  3. Step 3: Cross multiply
    816,979.65x = 1,225,478.39 × 248,453.21
  4. Step 4: Simplify right side
    816,979.65x = 304,474,032,411.47
  5. Step 5: Solve for x
    x = 304,474,032,411.47/816,979.65
  6. Step 6: Final answer
    x = 372,682.52

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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.