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Finding the Fourth Proportional to 613,375.53, 920,456.96 and 297,660.21

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Solution

The fourth proportional to 613,375.53, 920,456.96 and 297,660.21 is: 446,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,375.53 : 920,456.96 = 297,660.21 : x
  2. Step 2: Convert to fraction form
    613,375.53/920,456.96 = 297,660.21/x
  3. Step 3: Cross multiply
    613,375.53x = 920,456.96 × 297,660.21
  4. Step 4: Simplify right side
    613,375.53x = 273,983,410,521.26
  5. Step 5: Solve for x
    x = 273,983,410,521.26/613,375.53
  6. Step 6: Final answer
    x = 446,681.35

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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.