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Finding the Fourth Proportional to 489,392.67, 733,967.49 and 134,389.11

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Solution

The fourth proportional to 489,392.67, 733,967.49 and 134,389.11 is: 201,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,392.67 : 733,967.49 = 134,389.11 : x
  2. Step 2: Convert to fraction form
    489,392.67/733,967.49 = 134,389.11/x
  3. Step 3: Cross multiply
    489,392.67x = 733,967.49 × 134,389.11
  4. Step 4: Simplify right side
    489,392.67x = 98,637,237,750.03
  5. Step 5: Solve for x
    x = 98,637,237,750.03/489,392.67
  6. Step 6: Final answer
    x = 201,550.30

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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.