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Finding the Fourth Proportional to 665,114.90, 917,862.27 and 363,308.90

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Solution

The fourth proportional to 665,114.90, 917,862.27 and 363,308.90 is: 501,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,114.90 : 917,862.27 = 363,308.90 : x
  2. Step 2: Convert to fraction form
    665,114.90/917,862.27 = 363,308.90/x
  3. Step 3: Cross multiply
    665,114.90x = 917,862.27 × 363,308.90
  4. Step 4: Simplify right side
    665,114.90x = 333,467,529,848.66
  5. Step 5: Solve for x
    x = 333,467,529,848.66/665,114.90
  6. Step 6: Final answer
    x = 501,368.30

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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.