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Finding the Fourth Proportional to 664,065.80, 996,228.30 and 284,985.80

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Solution

The fourth proportional to 664,065.80, 996,228.30 and 284,985.80 is: 427,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,065.80 : 996,228.30 = 284,985.80 : x
  2. Step 2: Convert to fraction form
    664,065.80/996,228.30 = 284,985.80/x
  3. Step 3: Cross multiply
    664,065.80x = 996,228.30 × 284,985.80
  4. Step 4: Simplify right side
    664,065.80x = 283,910,919,058.14
  5. Step 5: Solve for x
    x = 283,910,919,058.14/664,065.80
  6. Step 6: Final answer
    x = 427,534.32

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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.