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Finding the Fourth Proportional to 665,367.57, 917,251.21 and 474,048.81

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Solution

The fourth proportional to 665,367.57, 917,251.21 and 474,048.81 is: 653,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,367.57 : 917,251.21 = 474,048.81 : x
  2. Step 2: Convert to fraction form
    665,367.57/917,251.21 = 474,048.81/x
  3. Step 3: Cross multiply
    665,367.57x = 917,251.21 × 474,048.81
  4. Step 4: Simplify right side
    665,367.57x = 434,821,844,571.56
  5. Step 5: Solve for x
    x = 434,821,844,571.56/665,367.57
  6. Step 6: Final answer
    x = 653,506.22

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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.