Home / 385,819.03-579,615.50-272,228.28

Finding the Fourth Proportional to 385,819.03, 579,615.50 and 272,228.28

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Solution

The fourth proportional to 385,819.03, 579,615.50 and 272,228.28 is: 408,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,819.03 : 579,615.50 = 272,228.28 : x
  2. Step 2: Convert to fraction form
    385,819.03/579,615.50 = 272,228.28/x
  3. Step 3: Cross multiply
    385,819.03x = 579,615.50 × 272,228.28
  4. Step 4: Simplify right side
    385,819.03x = 157,787,730,626.34
  5. Step 5: Solve for x
    x = 157,787,730,626.34/385,819.03
  6. Step 6: Final answer
    x = 408,968.24

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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.