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Finding the Fourth Proportional to 664,903.21, 997,441.13 and 304,987.27

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Solution

The fourth proportional to 664,903.21, 997,441.13 and 304,987.27 is: 457,520.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,903.21 : 997,441.13 = 304,987.27 : x
  2. Step 2: Convert to fraction form
    664,903.21/997,441.13 = 304,987.27/x
  3. Step 3: Cross multiply
    664,903.21x = 997,441.13 × 304,987.27
  4. Step 4: Simplify right side
    664,903.21x = 304,206,847,224.42
  5. Step 5: Solve for x
    x = 304,206,847,224.42/664,903.21
  6. Step 6: Final answer
    x = 457,520.50

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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.