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Finding the Fourth Proportional to 447,655.40, 672,260.70 and 433,658.60

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Solution

The fourth proportional to 447,655.40, 672,260.70 and 433,658.60 is: 651,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,655.40 : 672,260.70 = 433,658.60 : x
  2. Step 2: Convert to fraction form
    447,655.40/672,260.70 = 433,658.60/x
  3. Step 3: Cross multiply
    447,655.40x = 672,260.70 × 433,658.60
  4. Step 4: Simplify right side
    447,655.40x = 291,531,633,997.02
  5. Step 5: Solve for x
    x = 291,531,633,997.02/447,655.40
  6. Step 6: Final answer
    x = 651,241.19

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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.