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Finding the Fourth Proportional to 660,226.59, 990,707.83 and 356,614.62

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Solution

The fourth proportional to 660,226.59, 990,707.83 and 356,614.62 is: 535,120.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,226.59 : 990,707.83 = 356,614.62 : x
  2. Step 2: Convert to fraction form
    660,226.59/990,707.83 = 356,614.62/x
  3. Step 3: Cross multiply
    660,226.59x = 990,707.83 × 356,614.62
  4. Step 4: Simplify right side
    660,226.59x = 353,300,896,326.48
  5. Step 5: Solve for x
    x = 353,300,896,326.48/660,226.59
  6. Step 6: Final answer
    x = 535,120.67

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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.