Home / 421,029.05-581,277.51-273,993.98

Finding the Fourth Proportional to 421,029.05, 581,277.51 and 273,993.98

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Solution

The fourth proportional to 421,029.05, 581,277.51 and 273,993.98 is: 378,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,029.05 : 581,277.51 = 273,993.98 : x
  2. Step 2: Convert to fraction form
    421,029.05/581,277.51 = 273,993.98/x
  3. Step 3: Cross multiply
    421,029.05x = 581,277.51 × 273,993.98
  4. Step 4: Simplify right side
    421,029.05x = 159,266,535,543.00
  5. Step 5: Solve for x
    x = 159,266,535,543.00/421,029.05
  6. Step 6: Final answer
    x = 378,279.21

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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.