Home / 379,475.20-568,521.60-308,972.80

Finding the Fourth Proportional to 379,475.20, 568,521.60 and 308,972.80

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Solution

The fourth proportional to 379,475.20, 568,521.60 and 308,972.80 is: 462,896.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,475.20 : 568,521.60 = 308,972.80 : x
  2. Step 2: Convert to fraction form
    379,475.20/568,521.60 = 308,972.80/x
  3. Step 3: Cross multiply
    379,475.20x = 568,521.60 × 308,972.80
  4. Step 4: Simplify right side
    379,475.20x = 175,657,710,612.48
  5. Step 5: Solve for x
    x = 175,657,710,612.48/379,475.20
  6. Step 6: Final answer
    x = 462,896.42

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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.