Home / 1,208,858.16-1,668,215.04-664,982.24

Finding the Fourth Proportional to 1,208,858.16, 1,668,215.04 and 664,982.24

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Solution

The fourth proportional to 1,208,858.16, 1,668,215.04 and 664,982.24 is: 917,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,858.16 : 1,668,215.04 = 664,982.24 : x
  2. Step 2: Convert to fraction form
    1,208,858.16/1,668,215.04 = 664,982.24/x
  3. Step 3: Cross multiply
    1,208,858.16x = 1,668,215.04 × 664,982.24
  4. Step 4: Simplify right side
    1,208,858.16x = 1,109,333,374,100.89
  5. Step 5: Solve for x
    x = 1,109,333,374,100.89/1,208,858.16
  6. Step 6: Final answer
    x = 917,670.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.