Home / 1,351,664.88-1,865,096.80-820,960

Finding the Fourth Proportional to 1,351,664.88, 1,865,096.80 and 820,960

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Solution

The fourth proportional to 1,351,664.88, 1,865,096.80 and 820,960 is: 1,132,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,664.88 : 1,865,096.80 = 820,960 : x
  2. Step 2: Convert to fraction form
    1,351,664.88/1,865,096.80 = 820,960/x
  3. Step 3: Cross multiply
    1,351,664.88x = 1,865,096.80 × 820,960
  4. Step 4: Simplify right side
    1,351,664.88x = 1,531,169,868,928
  5. Step 5: Solve for x
    x = 1,531,169,868,928/1,351,664.88
  6. Step 6: Final answer
    x = 1,132,802.88

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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.