Home / 380,739.20-571,110.08-96,429.64

Finding the Fourth Proportional to 380,739.20, 571,110.08 and 96,429.64

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Solution

The fourth proportional to 380,739.20, 571,110.08 and 96,429.64 is: 144,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,739.20 : 571,110.08 = 96,429.64 : x
  2. Step 2: Convert to fraction form
    380,739.20/571,110.08 = 96,429.64/x
  3. Step 3: Cross multiply
    380,739.20x = 571,110.08 × 96,429.64
  4. Step 4: Simplify right side
    380,739.20x = 55,071,939,414.77
  5. Step 5: Solve for x
    x = 55,071,939,414.77/380,739.20
  6. Step 6: Final answer
    x = 144,644.78

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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.