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Finding the Fourth Proportional to 507,173.93, 760,980.71 and 279,191.02

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Solution

The fourth proportional to 507,173.93, 760,980.71 and 279,191.02 is: 418,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,173.93 : 760,980.71 = 279,191.02 : x
  2. Step 2: Convert to fraction form
    507,173.93/760,980.71 = 279,191.02/x
  3. Step 3: Cross multiply
    507,173.93x = 760,980.71 × 279,191.02
  4. Step 4: Simplify right side
    507,173.93x = 212,458,980,625.22
  5. Step 5: Solve for x
    x = 212,458,980,625.22/507,173.93
  6. Step 6: Final answer
    x = 418,907.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.