Home / 650,933.51-898,093.94-421,126.79

Finding the Fourth Proportional to 650,933.51, 898,093.94 and 421,126.79

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Solution

The fourth proportional to 650,933.51, 898,093.94 and 421,126.79 is: 581,029.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,933.51 : 898,093.94 = 421,126.79 : x
  2. Step 2: Convert to fraction form
    650,933.51/898,093.94 = 421,126.79/x
  3. Step 3: Cross multiply
    650,933.51x = 898,093.94 × 421,126.79
  4. Step 4: Simplify right side
    650,933.51x = 378,211,411,474.55
  5. Step 5: Solve for x
    x = 378,211,411,474.55/650,933.51
  6. Step 6: Final answer
    x = 581,029.26

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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.