Home / 672,893.40-1,009,890.90-667,644.60

Finding the Fourth Proportional to 672,893.40, 1,009,890.90 and 667,644.60

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Solution

The fourth proportional to 672,893.40, 1,009,890.90 and 667,644.60 is: 1,002,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,893.40 : 1,009,890.90 = 667,644.60 : x
  2. Step 2: Convert to fraction form
    672,893.40/1,009,890.90 = 667,644.60/x
  3. Step 3: Cross multiply
    672,893.40x = 1,009,890.90 × 667,644.60
  4. Step 4: Simplify right side
    672,893.40x = 674,248,205,974.14
  5. Step 5: Solve for x
    x = 674,248,205,974.14/672,893.40
  6. Step 6: Final answer
    x = 1,002,013.40

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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.