Home / 1,218,364-1,681,109.04-788,584.48

Finding the Fourth Proportional to 1,218,364, 1,681,109.04 and 788,584.48

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Solution

The fourth proportional to 1,218,364, 1,681,109.04 and 788,584.48 is: 1,088,095.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,364 : 1,681,109.04 = 788,584.48 : x
  2. Step 2: Convert to fraction form
    1,218,364/1,681,109.04 = 788,584.48/x
  3. Step 3: Cross multiply
    1,218,364x = 1,681,109.04 × 788,584.48
  4. Step 4: Simplify right side
    1,218,364x = 1,325,696,498,131.70
  5. Step 5: Solve for x
    x = 1,325,696,498,131.70/1,218,364
  6. Step 6: Final answer
    x = 1,088,095.59

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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.