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Finding the Fourth Proportional to 600,136.80, 898,630.56 and 389,135.04

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Solution

The fourth proportional to 600,136.80, 898,630.56 and 389,135.04 is: 582,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,136.80 : 898,630.56 = 389,135.04 : x
  2. Step 2: Convert to fraction form
    600,136.80/898,630.56 = 389,135.04/x
  3. Step 3: Cross multiply
    600,136.80x = 898,630.56 × 389,135.04
  4. Step 4: Simplify right side
    600,136.80x = 349,688,638,910.82
  5. Step 5: Solve for x
    x = 349,688,638,910.82/600,136.80
  6. Step 6: Final answer
    x = 582,681.55

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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.