Home / 671,188.20-1,006,782.30-405,767.40

Finding the Fourth Proportional to 671,188.20, 1,006,782.30 and 405,767.40

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Solution

The fourth proportional to 671,188.20, 1,006,782.30 and 405,767.40 is: 608,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,188.20 : 1,006,782.30 = 405,767.40 : x
  2. Step 2: Convert to fraction form
    671,188.20/1,006,782.30 = 405,767.40/x
  3. Step 3: Cross multiply
    671,188.20x = 1,006,782.30 × 405,767.40
  4. Step 4: Simplify right side
    671,188.20x = 408,519,436,237.02
  5. Step 5: Solve for x
    x = 408,519,436,237.02/671,188.20
  6. Step 6: Final answer
    x = 608,651.10

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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.