Home / 1,131,019.54-1,560,808.65-621,725.02

Finding the Fourth Proportional to 1,131,019.54, 1,560,808.65 and 621,725.02

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Solution

The fourth proportional to 1,131,019.54, 1,560,808.65 and 621,725.02 is: 857,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,019.54 : 1,560,808.65 = 621,725.02 : x
  2. Step 2: Convert to fraction form
    1,131,019.54/1,560,808.65 = 621,725.02/x
  3. Step 3: Cross multiply
    1,131,019.54x = 1,560,808.65 × 621,725.02
  4. Step 4: Simplify right side
    1,131,019.54x = 970,393,789,137.42
  5. Step 5: Solve for x
    x = 970,393,789,137.42/1,131,019.54
  6. Step 6: Final answer
    x = 857,981.45

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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.