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Finding the Fourth Proportional to 615,107.80, 922,661.70 and 552,122.20

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Solution

The fourth proportional to 615,107.80, 922,661.70 and 552,122.20 is: 828,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,107.80 : 922,661.70 = 552,122.20 : x
  2. Step 2: Convert to fraction form
    615,107.80/922,661.70 = 552,122.20/x
  3. Step 3: Cross multiply
    615,107.80x = 922,661.70 × 552,122.20
  4. Step 4: Simplify right side
    615,107.80x = 509,422,007,659.74
  5. Step 5: Solve for x
    x = 509,422,007,659.74/615,107.80
  6. Step 6: Final answer
    x = 828,183.30

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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.