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Finding the Fourth Proportional to 615,850.06, 850,248.30 and 422,575.30

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Solution

The fourth proportional to 615,850.06, 850,248.30 and 422,575.30 is: 583,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,850.06 : 850,248.30 = 422,575.30 : x
  2. Step 2: Convert to fraction form
    615,850.06/850,248.30 = 422,575.30/x
  3. Step 3: Cross multiply
    615,850.06x = 850,248.30 × 422,575.30
  4. Step 4: Simplify right side
    615,850.06x = 359,293,930,446.99
  5. Step 5: Solve for x
    x = 359,293,930,446.99/615,850.06
  6. Step 6: Final answer
    x = 583,411.38

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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.