Home / 1,213,818.40-1,821,383.70-540,003.70

Finding the Fourth Proportional to 1,213,818.40, 1,821,383.70 and 540,003.70

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Solution

The fourth proportional to 1,213,818.40, 1,821,383.70 and 540,003.70 is: 810,297.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,818.40 : 1,821,383.70 = 540,003.70 : x
  2. Step 2: Convert to fraction form
    1,213,818.40/1,821,383.70 = 540,003.70/x
  3. Step 3: Cross multiply
    1,213,818.40x = 1,821,383.70 × 540,003.70
  4. Step 4: Simplify right side
    1,213,818.40x = 983,553,937,119.69
  5. Step 5: Solve for x
    x = 983,553,937,119.69/1,213,818.40
  6. Step 6: Final answer
    x = 810,297.44

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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.