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Finding the Fourth Proportional to 617,779.56, 925,160.28 and 380,796.24

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Solution

The fourth proportional to 617,779.56, 925,160.28 and 380,796.24 is: 570,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,779.56 : 925,160.28 = 380,796.24 : x
  2. Step 2: Convert to fraction form
    617,779.56/925,160.28 = 380,796.24/x
  3. Step 3: Cross multiply
    617,779.56x = 925,160.28 × 380,796.24
  4. Step 4: Simplify right side
    617,779.56x = 352,297,556,021.35
  5. Step 5: Solve for x
    x = 352,297,556,021.35/617,779.56
  6. Step 6: Final answer
    x = 570,264.18

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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.