Home / 432,823.88-647,611.96-357,979.28

Finding the Fourth Proportional to 432,823.88, 647,611.96 and 357,979.28

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Solution

The fourth proportional to 432,823.88, 647,611.96 and 357,979.28 is: 535,625.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,823.88 : 647,611.96 = 357,979.28 : x
  2. Step 2: Convert to fraction form
    432,823.88/647,611.96 = 357,979.28/x
  3. Step 3: Cross multiply
    432,823.88x = 647,611.96 × 357,979.28
  4. Step 4: Simplify right side
    432,823.88x = 231,831,663,160.19
  5. Step 5: Solve for x
    x = 231,831,663,160.19/432,823.88
  6. Step 6: Final answer
    x = 535,625.86

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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.