Home / 816,980.65-1,225,479.89-248,454.21

Finding the Fourth Proportional to 816,980.65, 1,225,479.89 and 248,454.21

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Solution

The fourth proportional to 816,980.65, 1,225,479.89 and 248,454.21 is: 372,684.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,980.65 : 1,225,479.89 = 248,454.21 : x
  2. Step 2: Convert to fraction form
    816,980.65/1,225,479.89 = 248,454.21/x
  3. Step 3: Cross multiply
    816,980.65x = 1,225,479.89 × 248,454.21
  4. Step 4: Simplify right side
    816,980.65x = 304,475,637,940.84
  5. Step 5: Solve for x
    x = 304,475,637,940.84/816,980.65
  6. Step 6: Final answer
    x = 372,684.03

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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.