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Finding the Fourth Proportional to 505,526.94, 697,627.04 and 279,172.44

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Solution

The fourth proportional to 505,526.94, 697,627.04 and 279,172.44 is: 385,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,526.94 : 697,627.04 = 279,172.44 : x
  2. Step 2: Convert to fraction form
    505,526.94/697,627.04 = 279,172.44/x
  3. Step 3: Cross multiply
    505,526.94x = 697,627.04 × 279,172.44
  4. Step 4: Simplify right side
    505,526.94x = 194,758,242,966.78
  5. Step 5: Solve for x
    x = 194,758,242,966.78/505,526.94
  6. Step 6: Final answer
    x = 385,257.89

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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.