Home / 433,568.40-649,963.80-386,329.20

Finding the Fourth Proportional to 433,568.40, 649,963.80 and 386,329.20

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Solution

The fourth proportional to 433,568.40, 649,963.80 and 386,329.20 is: 579,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,568.40 : 649,963.80 = 386,329.20 : x
  2. Step 2: Convert to fraction form
    433,568.40/649,963.80 = 386,329.20/x
  3. Step 3: Cross multiply
    433,568.40x = 649,963.80 × 386,329.20
  4. Step 4: Simplify right side
    433,568.40x = 251,099,994,882.96
  5. Step 5: Solve for x
    x = 251,099,994,882.96/433,568.40
  6. Step 6: Final answer
    x = 579,147.36

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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.