Home / 380,938.08-571,425.35-314,254.56

Finding the Fourth Proportional to 380,938.08, 571,425.35 and 314,254.56

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Solution

The fourth proportional to 380,938.08, 571,425.35 and 314,254.56 is: 471,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,938.08 : 571,425.35 = 314,254.56 : x
  2. Step 2: Convert to fraction form
    380,938.08/571,425.35 = 314,254.56/x
  3. Step 3: Cross multiply
    380,938.08x = 571,425.35 × 314,254.56
  4. Step 4: Simplify right side
    380,938.08x = 179,573,020,365.82
  5. Step 5: Solve for x
    x = 179,573,020,365.82/380,938.08
  6. Step 6: Final answer
    x = 471,396.87

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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.