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Finding the Fourth Proportional to 660,585.46, 990,635.14 and 228,192.89

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Solution

The fourth proportional to 660,585.46, 990,635.14 and 228,192.89 is: 342,205.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,585.46 : 990,635.14 = 228,192.89 : x
  2. Step 2: Convert to fraction form
    660,585.46/990,635.14 = 228,192.89/x
  3. Step 3: Cross multiply
    660,585.46x = 990,635.14 × 228,192.89
  4. Step 4: Simplify right side
    660,585.46x = 226,055,889,438.02
  5. Step 5: Solve for x
    x = 226,055,889,438.02/660,585.46
  6. Step 6: Final answer
    x = 342,205.37

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1.5x scale

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.