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Finding the Fourth Proportional to 660,525.54, 913,191.12 and 488,171.70

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Solution

The fourth proportional to 660,525.54, 913,191.12 and 488,171.70 is: 674,908.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,525.54 : 913,191.12 = 488,171.70 : x
  2. Step 2: Convert to fraction form
    660,525.54/913,191.12 = 488,171.70/x
  3. Step 3: Cross multiply
    660,525.54x = 913,191.12 × 488,171.70
  4. Step 4: Simplify right side
    660,525.54x = 445,794,061,475.30
  5. Step 5: Solve for x
    x = 445,794,061,475.30/660,525.54
  6. Step 6: Final answer
    x = 674,908.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.