Home / 385,979.20-579,487.20-246,356.80

Finding the Fourth Proportional to 385,979.20, 579,487.20 and 246,356.80

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Solution

The fourth proportional to 385,979.20, 579,487.20 and 246,356.80 is: 369,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,979.20 : 579,487.20 = 246,356.80 : x
  2. Step 2: Convert to fraction form
    385,979.20/579,487.20 = 246,356.80/x
  3. Step 3: Cross multiply
    385,979.20x = 579,487.20 × 246,356.80
  4. Step 4: Simplify right side
    385,979.20x = 142,760,612,232.96
  5. Step 5: Solve for x
    x = 142,760,612,232.96/385,979.20
  6. Step 6: Final answer
    x = 369,866.08

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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.