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Finding the Fourth Proportional to 654,140.53, 902,457.61 and 482,470.57

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Solution

The fourth proportional to 654,140.53, 902,457.61 and 482,470.57 is: 665,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,140.53 : 902,457.61 = 482,470.57 : x
  2. Step 2: Convert to fraction form
    654,140.53/902,457.61 = 482,470.57/x
  3. Step 3: Cross multiply
    654,140.53x = 902,457.61 × 482,470.57
  4. Step 4: Simplify right side
    654,140.53x = 435,409,237,497.54
  5. Step 5: Solve for x
    x = 435,409,237,497.54/654,140.53
  6. Step 6: Final answer
    x = 665,620.33

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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.