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Finding the Fourth Proportional to 661,899.87, 913,425.80 and 360,096.03

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Solution

The fourth proportional to 661,899.87, 913,425.80 and 360,096.03 is: 496,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,899.87 : 913,425.80 = 360,096.03 : x
  2. Step 2: Convert to fraction form
    661,899.87/913,425.80 = 360,096.03/x
  3. Step 3: Cross multiply
    661,899.87x = 913,425.80 × 360,096.03
  4. Step 4: Simplify right side
    661,899.87x = 328,921,002,479.09
  5. Step 5: Solve for x
    x = 328,921,002,479.09/661,899.87
  6. Step 6: Final answer
    x = 496,934.68

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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.