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Finding the Fourth Proportional to 501,307.95, 691,848.70 and 274,997.19

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Solution

The fourth proportional to 501,307.95, 691,848.70 and 274,997.19 is: 379,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,307.95 : 691,848.70 = 274,997.19 : x
  2. Step 2: Convert to fraction form
    501,307.95/691,848.70 = 274,997.19/x
  3. Step 3: Cross multiply
    501,307.95x = 691,848.70 × 274,997.19
  4. Step 4: Simplify right side
    501,307.95x = 190,256,448,405.15
  5. Step 5: Solve for x
    x = 190,256,448,405.15/501,307.95
  6. Step 6: Final answer
    x = 379,520.11

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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.