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Finding the Fourth Proportional to 446,167.77, 664,998.96 and 420,948.90

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Solution

The fourth proportional to 446,167.77, 664,998.96 and 420,948.90 is: 627,411.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,167.77 : 664,998.96 = 420,948.90 : x
  2. Step 2: Convert to fraction form
    446,167.77/664,998.96 = 420,948.90/x
  3. Step 3: Cross multiply
    446,167.77x = 664,998.96 × 420,948.90
  4. Step 4: Simplify right side
    446,167.77x = 279,930,580,713.14
  5. Step 5: Solve for x
    x = 279,930,580,713.14/446,167.77
  6. Step 6: Final answer
    x = 627,411.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.