Home / 380,431.74-524,994.96-219,285.72

Finding the Fourth Proportional to 380,431.74, 524,994.96 and 219,285.72

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Solution

The fourth proportional to 380,431.74, 524,994.96 and 219,285.72 is: 302,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,431.74 : 524,994.96 = 219,285.72 : x
  2. Step 2: Convert to fraction form
    380,431.74/524,994.96 = 219,285.72/x
  3. Step 3: Cross multiply
    380,431.74x = 524,994.96 × 219,285.72
  4. Step 4: Simplify right side
    380,431.74x = 115,123,897,799.97
  5. Step 5: Solve for x
    x = 115,123,897,799.97/380,431.74
  6. Step 6: Final answer
    x = 302,613.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.