Home / 1,214,017.80-1,821,026.70-415,179.60

Finding the Fourth Proportional to 1,214,017.80, 1,821,026.70 and 415,179.60

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Solution

The fourth proportional to 1,214,017.80, 1,821,026.70 and 415,179.60 is: 622,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,017.80 : 1,821,026.70 = 415,179.60 : x
  2. Step 2: Convert to fraction form
    1,214,017.80/1,821,026.70 = 415,179.60/x
  3. Step 3: Cross multiply
    1,214,017.80x = 1,821,026.70 × 415,179.60
  4. Step 4: Simplify right side
    1,214,017.80x = 756,053,136,895.32
  5. Step 5: Solve for x
    x = 756,053,136,895.32/1,214,017.80
  6. Step 6: Final answer
    x = 622,769.40

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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.