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Finding the Fourth Proportional to 989,564, 1,365,600.96 and 536,855

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Solution

The fourth proportional to 989,564, 1,365,600.96 and 536,855 is: 740,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,564 : 1,365,600.96 = 536,855 : x
  2. Step 2: Convert to fraction form
    989,564/1,365,600.96 = 536,855/x
  3. Step 3: Cross multiply
    989,564x = 1,365,600.96 × 536,855
  4. Step 4: Simplify right side
    989,564x = 733,129,703,380.80
  5. Step 5: Solve for x
    x = 733,129,703,380.80/989,564
  6. Step 6: Final answer
    x = 740,861.33

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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.