Home / 1,165,290.36-1,747,941.12-407,128.56

Finding the Fourth Proportional to 1,165,290.36, 1,747,941.12 and 407,128.56

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Solution

The fourth proportional to 1,165,290.36, 1,747,941.12 and 407,128.56 is: 610,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,290.36 : 1,747,941.12 = 407,128.56 : x
  2. Step 2: Convert to fraction form
    1,165,290.36/1,747,941.12 = 407,128.56/x
  3. Step 3: Cross multiply
    1,165,290.36x = 1,747,941.12 × 407,128.56
  4. Step 4: Simplify right side
    1,165,290.36x = 711,636,751,150.39
  5. Step 5: Solve for x
    x = 711,636,751,150.39/1,165,290.36
  6. Step 6: Final answer
    x = 610,694.79

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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.