Home / 1,214,267.82-1,821,347.61-415,620.78

Finding the Fourth Proportional to 1,214,267.82, 1,821,347.61 and 415,620.78

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Solution

The fourth proportional to 1,214,267.82, 1,821,347.61 and 415,620.78 is: 623,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,267.82 : 1,821,347.61 = 415,620.78 : x
  2. Step 2: Convert to fraction form
    1,214,267.82/1,821,347.61 = 415,620.78/x
  3. Step 3: Cross multiply
    1,214,267.82x = 1,821,347.61 × 415,620.78
  4. Step 4: Simplify right side
    1,214,267.82x = 756,989,914,319.34
  5. Step 5: Solve for x
    x = 756,989,914,319.34/1,214,267.82
  6. Step 6: Final answer
    x = 623,412.65

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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.