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Finding the Fourth Proportional to 615,629.20, 922,666.20 and 299,405.20

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Solution

The fourth proportional to 615,629.20, 922,666.20 and 299,405.20 is: 448,729.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,629.20 : 922,666.20 = 299,405.20 : x
  2. Step 2: Convert to fraction form
    615,629.20/922,666.20 = 299,405.20/x
  3. Step 3: Cross multiply
    615,629.20x = 922,666.20 × 299,405.20
  4. Step 4: Simplify right side
    615,629.20x = 276,251,058,144.24
  5. Step 5: Solve for x
    x = 276,251,058,144.24/615,629.20
  6. Step 6: Final answer
    x = 448,729.62

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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.