Home / 1,420,379.70-2,130,868.76-460,760.37

Finding the Fourth Proportional to 1,420,379.70, 2,130,868.76 and 460,760.37

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Solution

The fourth proportional to 1,420,379.70, 2,130,868.76 and 460,760.37 is: 691,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,379.70 : 2,130,868.76 = 460,760.37 : x
  2. Step 2: Convert to fraction form
    1,420,379.70/2,130,868.76 = 460,760.37/x
  3. Step 3: Cross multiply
    1,420,379.70x = 2,130,868.76 × 460,760.37
  4. Step 4: Simplify right side
    1,420,379.70x = 981,819,875,975.24
  5. Step 5: Solve for x
    x = 981,819,875,975.24/1,420,379.70
  6. Step 6: Final answer
    x = 691,237.61

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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.