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Finding the Fourth Proportional to 665,295.76, 918,111 and 363,496.24

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Solution

The fourth proportional to 665,295.76, 918,111 and 363,496.24 is: 501,626.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,295.76 : 918,111 = 363,496.24 : x
  2. Step 2: Convert to fraction form
    665,295.76/918,111 = 363,496.24/x
  3. Step 3: Cross multiply
    665,295.76x = 918,111 × 363,496.24
  4. Step 4: Simplify right side
    665,295.76x = 333,729,896,402.64
  5. Step 5: Solve for x
    x = 333,729,896,402.64/665,295.76
  6. Step 6: Final answer
    x = 501,626.37

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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.