Home / 1,214,006.30-1,821,009.45-415,216.70

Finding the Fourth Proportional to 1,214,006.30, 1,821,009.45 and 415,216.70

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Solution

The fourth proportional to 1,214,006.30, 1,821,009.45 and 415,216.70 is: 622,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,006.30 : 1,821,009.45 = 415,216.70 : x
  2. Step 2: Convert to fraction form
    1,214,006.30/1,821,009.45 = 415,216.70/x
  3. Step 3: Cross multiply
    1,214,006.30x = 1,821,009.45 × 415,216.70
  4. Step 4: Simplify right side
    1,214,006.30x = 756,113,534,497.82
  5. Step 5: Solve for x
    x = 756,113,534,497.82/1,214,006.30
  6. Step 6: Final answer
    x = 622,825.05

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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.