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Finding the Fourth Proportional to 615,030.80, 922,546.20 and 366,198.80

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Solution

The fourth proportional to 615,030.80, 922,546.20 and 366,198.80 is: 549,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,030.80 : 922,546.20 = 366,198.80 : x
  2. Step 2: Convert to fraction form
    615,030.80/922,546.20 = 366,198.80/x
  3. Step 3: Cross multiply
    615,030.80x = 922,546.20 × 366,198.80
  4. Step 4: Simplify right side
    615,030.80x = 337,835,311,384.56
  5. Step 5: Solve for x
    x = 337,835,311,384.56/615,030.80
  6. Step 6: Final answer
    x = 549,298.20

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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.