Home / 1,351,626.87-1,865,044.43-820,921.94

Finding the Fourth Proportional to 1,351,626.87, 1,865,044.43 and 820,921.94

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Solution

The fourth proportional to 1,351,626.87, 1,865,044.43 and 820,921.94 is: 1,132,750.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,626.87 : 1,865,044.43 = 820,921.94 : x
  2. Step 2: Convert to fraction form
    1,351,626.87/1,865,044.43 = 820,921.94/x
  3. Step 3: Cross multiply
    1,351,626.87x = 1,865,044.43 × 820,921.94
  4. Step 4: Simplify right side
    1,351,626.87x = 1,531,055,878,231.96
  5. Step 5: Solve for x
    x = 1,531,055,878,231.96/1,351,626.87
  6. Step 6: Final answer
    x = 1,132,750.40

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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.