Home / 396,160.07-546,912.71-309,935.77

Finding the Fourth Proportional to 396,160.07, 546,912.71 and 309,935.77

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Solution

The fourth proportional to 396,160.07, 546,912.71 and 309,935.77 is: 427,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,160.07 : 546,912.71 = 309,935.77 : x
  2. Step 2: Convert to fraction form
    396,160.07/546,912.71 = 309,935.77/x
  3. Step 3: Cross multiply
    396,160.07x = 546,912.71 × 309,935.77
  4. Step 4: Simplify right side
    396,160.07x = 169,507,810,141.94
  5. Step 5: Solve for x
    x = 169,507,810,141.94/396,160.07
  6. Step 6: Final answer
    x = 427,877.08

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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.