Home / 828,271.92-1,242,372.29-259,640.28

Finding the Fourth Proportional to 828,271.92, 1,242,372.29 and 259,640.28

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Solution

The fourth proportional to 828,271.92, 1,242,372.29 and 259,640.28 is: 389,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,271.92 : 1,242,372.29 = 259,640.28 : x
  2. Step 2: Convert to fraction form
    828,271.92/1,242,372.29 = 259,640.28/x
  3. Step 3: Cross multiply
    828,271.92x = 1,242,372.29 × 259,640.28
  4. Step 4: Simplify right side
    828,271.92x = 322,569,889,239.84
  5. Step 5: Solve for x
    x = 322,569,889,239.84/828,271.92
  6. Step 6: Final answer
    x = 389,449.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.