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Finding the Fourth Proportional to 660,326.76, 990,359.10 and 323,222.76

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Solution

The fourth proportional to 660,326.76, 990,359.10 and 323,222.76 is: 484,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,326.76 : 990,359.10 = 323,222.76 : x
  2. Step 2: Convert to fraction form
    660,326.76/990,359.10 = 323,222.76/x
  3. Step 3: Cross multiply
    660,326.76x = 990,359.10 × 323,222.76
  4. Step 4: Simplify right side
    660,326.76x = 320,106,601,693.12
  5. Step 5: Solve for x
    x = 320,106,601,693.12/660,326.76
  6. Step 6: Final answer
    x = 484,770.00

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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.