Home / 1,208,904.89-1,668,236.03-665,006.18

Finding the Fourth Proportional to 1,208,904.89, 1,668,236.03 and 665,006.18

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Solution

The fourth proportional to 1,208,904.89, 1,668,236.03 and 665,006.18 is: 917,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,904.89 : 1,668,236.03 = 665,006.18 : x
  2. Step 2: Convert to fraction form
    1,208,904.89/1,668,236.03 = 665,006.18/x
  3. Step 3: Cross multiply
    1,208,904.89x = 1,668,236.03 × 665,006.18
  4. Step 4: Simplify right side
    1,208,904.89x = 1,109,387,257,982.45
  5. Step 5: Solve for x
    x = 1,109,387,257,982.45/1,208,904.89
  6. Step 6: Final answer
    x = 917,679.52

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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.