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Finding the Fourth Proportional to 989,560, 1,365,595.44 and 536,851

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Solution

The fourth proportional to 989,560, 1,365,595.44 and 536,851 is: 740,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,560 : 1,365,595.44 = 536,851 : x
  2. Step 2: Convert to fraction form
    989,560/1,365,595.44 = 536,851/x
  3. Step 3: Cross multiply
    989,560x = 1,365,595.44 × 536,851
  4. Step 4: Simplify right side
    989,560x = 733,121,277,559.44
  5. Step 5: Solve for x
    x = 733,121,277,559.44/989,560
  6. Step 6: Final answer
    x = 740,855.81

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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.