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Finding the Fourth Proportional to 480,133.23, 662,375.67 and 289,035.90

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Solution

The fourth proportional to 480,133.23, 662,375.67 and 289,035.90 is: 398,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,133.23 : 662,375.67 = 289,035.90 : x
  2. Step 2: Convert to fraction form
    480,133.23/662,375.67 = 289,035.90/x
  3. Step 3: Cross multiply
    480,133.23x = 662,375.67 × 289,035.90
  4. Step 4: Simplify right side
    480,133.23x = 191,450,347,916.55
  5. Step 5: Solve for x
    x = 191,450,347,916.55/480,133.23
  6. Step 6: Final answer
    x = 398,744.22

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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.