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Finding the Fourth Proportional to 501,054, 691,817.40 and 322,517.04

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Solution

The fourth proportional to 501,054, 691,817.40 and 322,517.04 is: 445,307.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,054 : 691,817.40 = 322,517.04 : x
  2. Step 2: Convert to fraction form
    501,054/691,817.40 = 322,517.04/x
  3. Step 3: Cross multiply
    501,054x = 691,817.40 × 322,517.04
  4. Step 4: Simplify right side
    501,054x = 223,122,900,068.50
  5. Step 5: Solve for x
    x = 223,122,900,068.50/501,054
  6. Step 6: Final answer
    x = 445,307.09

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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.