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Finding the Fourth Proportional to 426,754.68, 589,003.91 and 273,985.90

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Solution

The fourth proportional to 426,754.68, 589,003.91 and 273,985.90 is: 378,153.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,754.68 : 589,003.91 = 273,985.90 : x
  2. Step 2: Convert to fraction form
    426,754.68/589,003.91 = 273,985.90/x
  3. Step 3: Cross multiply
    426,754.68x = 589,003.91 × 273,985.90
  4. Step 4: Simplify right side
    426,754.68x = 161,378,765,597.32
  5. Step 5: Solve for x
    x = 161,378,765,597.32/426,754.68
  6. Step 6: Final answer
    x = 378,153.47

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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.