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Finding the Fourth Proportional to 665,400.06, 918,254.43 and 363,594.06

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Solution

The fourth proportional to 665,400.06, 918,254.43 and 363,594.06 is: 501,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,400.06 : 918,254.43 = 363,594.06 : x
  2. Step 2: Convert to fraction form
    665,400.06/918,254.43 = 363,594.06/x
  3. Step 3: Cross multiply
    665,400.06x = 918,254.43 × 363,594.06
  4. Step 4: Simplify right side
    665,400.06x = 333,871,856,316.69
  5. Step 5: Solve for x
    x = 333,871,856,316.69/665,400.06
  6. Step 6: Final answer
    x = 501,761.09

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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.