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Finding the Fourth Proportional to 505,922.04, 698,172.66 and 279,567.54

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Solution

The fourth proportional to 505,922.04, 698,172.66 and 279,567.54 is: 385,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,922.04 : 698,172.66 = 279,567.54 : x
  2. Step 2: Convert to fraction form
    505,922.04/698,172.66 = 279,567.54/x
  3. Step 3: Cross multiply
    505,922.04x = 698,172.66 × 279,567.54
  4. Step 4: Simplify right side
    505,922.04x = 195,186,413,051.46
  5. Step 5: Solve for x
    x = 195,186,413,051.46/505,922.04
  6. Step 6: Final answer
    x = 385,803.34

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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.