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Finding the Fourth Proportional to 612,850.02, 919,281.46 and 186,455.28

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Solution

The fourth proportional to 612,850.02, 919,281.46 and 186,455.28 is: 279,684.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,850.02 : 919,281.46 = 186,455.28 : x
  2. Step 2: Convert to fraction form
    612,850.02/919,281.46 = 186,455.28/x
  3. Step 3: Cross multiply
    612,850.02x = 919,281.46 × 186,455.28
  4. Step 4: Simplify right side
    612,850.02x = 171,404,882,023.11
  5. Step 5: Solve for x
    x = 171,404,882,023.11/612,850.02
  6. Step 6: Final answer
    x = 279,684.88

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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.