Home / 396,153.32-546,903.39-309,929.02

Finding the Fourth Proportional to 396,153.32, 546,903.39 and 309,929.02

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Solution

The fourth proportional to 396,153.32, 546,903.39 and 309,929.02 is: 427,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,153.32 : 546,903.39 = 309,929.02 : x
  2. Step 2: Convert to fraction form
    396,153.32/546,903.39 = 309,929.02/x
  3. Step 3: Cross multiply
    396,153.32x = 546,903.39 × 309,929.02
  4. Step 4: Simplify right side
    396,153.32x = 169,501,231,492.35
  5. Step 5: Solve for x
    x = 169,501,231,492.35/396,153.32
  6. Step 6: Final answer
    x = 427,867.76

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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.