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Finding the Fourth Proportional to 660,285.63, 990,140.04 and 233,679.67

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Solution

The fourth proportional to 660,285.63, 990,140.04 and 233,679.67 is: 350,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,285.63 : 990,140.04 = 233,679.67 : x
  2. Step 2: Convert to fraction form
    660,285.63/990,140.04 = 233,679.67/x
  3. Step 3: Cross multiply
    660,285.63x = 990,140.04 × 233,679.67
  4. Step 4: Simplify right side
    660,285.63x = 231,375,597,800.99
  5. Step 5: Solve for x
    x = 231,375,597,800.99/660,285.63
  6. Step 6: Final answer
    x = 350,417.44

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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.