Home / 386,644.20-579,966.30-346,093.80

Finding the Fourth Proportional to 386,644.20, 579,966.30 and 346,093.80

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Solution

The fourth proportional to 386,644.20, 579,966.30 and 346,093.80 is: 519,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,644.20 : 579,966.30 = 346,093.80 : x
  2. Step 2: Convert to fraction form
    386,644.20/579,966.30 = 346,093.80/x
  3. Step 3: Cross multiply
    386,644.20x = 579,966.30 × 346,093.80
  4. Step 4: Simplify right side
    386,644.20x = 200,722,740,638.94
  5. Step 5: Solve for x
    x = 200,722,740,638.94/386,644.20
  6. Step 6: Final answer
    x = 519,140.70

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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.