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Finding the Fourth Proportional to 989,523, 1,365,542.28 and 536,814

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Solution

The fourth proportional to 989,523, 1,365,542.28 and 536,814 is: 740,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,523 : 1,365,542.28 = 536,814 : x
  2. Step 2: Convert to fraction form
    989,523/1,365,542.28 = 536,814/x
  3. Step 3: Cross multiply
    989,523x = 1,365,542.28 × 536,814
  4. Step 4: Simplify right side
    989,523x = 733,042,213,495.92
  5. Step 5: Solve for x
    x = 733,042,213,495.92/989,523
  6. Step 6: Final answer
    x = 740,803.61

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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.