Home / 386,649.20-579,973.80-346,098.80

Finding the Fourth Proportional to 386,649.20, 579,973.80 and 346,098.80

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Solution

The fourth proportional to 386,649.20, 579,973.80 and 346,098.80 is: 519,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,649.20 : 579,973.80 = 346,098.80 : x
  2. Step 2: Convert to fraction form
    386,649.20/579,973.80 = 346,098.80/x
  3. Step 3: Cross multiply
    386,649.20x = 579,973.80 × 346,098.80
  4. Step 4: Simplify right side
    386,649.20x = 200,728,236,211.44
  5. Step 5: Solve for x
    x = 200,728,236,211.44/386,649.20
  6. Step 6: Final answer
    x = 519,148.20

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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.