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Finding the Fourth Proportional to 615,257.80, 922,886.70 and 377,830.60

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Solution

The fourth proportional to 615,257.80, 922,886.70 and 377,830.60 is: 566,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,257.80 : 922,886.70 = 377,830.60 : x
  2. Step 2: Convert to fraction form
    615,257.80/922,886.70 = 377,830.60/x
  3. Step 3: Cross multiply
    615,257.80x = 922,886.70 × 377,830.60
  4. Step 4: Simplify right side
    615,257.80x = 348,694,835,593.02
  5. Step 5: Solve for x
    x = 348,694,835,593.02/615,257.80
  6. Step 6: Final answer
    x = 566,745.90

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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.