Home / 1,013,990.40-1,520,409.69-414,249.39

Finding the Fourth Proportional to 1,013,990.40, 1,520,409.69 and 414,249.39

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Solution

The fourth proportional to 1,013,990.40, 1,520,409.69 and 414,249.39 is: 621,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,990.40 : 1,520,409.69 = 414,249.39 : x
  2. Step 2: Convert to fraction form
    1,013,990.40/1,520,409.69 = 414,249.39/x
  3. Step 3: Cross multiply
    1,013,990.40x = 1,520,409.69 × 414,249.39
  4. Step 4: Simplify right side
    1,013,990.40x = 629,828,786,632.59
  5. Step 5: Solve for x
    x = 629,828,786,632.59/1,013,990.40
  6. Step 6: Final answer
    x = 621,138.81

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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.