Home / 408,050.06-611,995.40-387,796.31

Finding the Fourth Proportional to 408,050.06, 611,995.40 and 387,796.31

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Solution

The fourth proportional to 408,050.06, 611,995.40 and 387,796.31 is: 581,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,050.06 : 611,995.40 = 387,796.31 : x
  2. Step 2: Convert to fraction form
    408,050.06/611,995.40 = 387,796.31/x
  3. Step 3: Cross multiply
    408,050.06x = 611,995.40 × 387,796.31
  4. Step 4: Simplify right side
    408,050.06x = 237,329,556,607.23
  5. Step 5: Solve for x
    x = 237,329,556,607.23/408,050.06
  6. Step 6: Final answer
    x = 581,618.73

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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.