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Finding the Fourth Proportional to 609,136.93, 840,219.06 and 488,567.62

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Solution

The fourth proportional to 609,136.93, 840,219.06 and 488,567.62 is: 673,910.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,136.93 : 840,219.06 = 488,567.62 : x
  2. Step 2: Convert to fraction form
    609,136.93/840,219.06 = 488,567.62/x
  3. Step 3: Cross multiply
    609,136.93x = 840,219.06 × 488,567.62
  4. Step 4: Simplify right side
    609,136.93x = 410,503,826,422.84
  5. Step 5: Solve for x
    x = 410,503,826,422.84/609,136.93
  6. Step 6: Final answer
    x = 673,910.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.