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Finding the Fourth Proportional to 978,444.68, 1,467,887.34 and 347,357.48

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Solution

The fourth proportional to 978,444.68, 1,467,887.34 and 347,357.48 is: 521,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,444.68 : 1,467,887.34 = 347,357.48 : x
  2. Step 2: Convert to fraction form
    978,444.68/1,467,887.34 = 347,357.48/x
  3. Step 3: Cross multiply
    978,444.68x = 1,467,887.34 × 347,357.48
  4. Step 4: Simplify right side
    978,444.68x = 509,881,647,346.30
  5. Step 5: Solve for x
    x = 509,881,647,346.30/978,444.68
  6. Step 6: Final answer
    x = 521,114.44

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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.