Home / 828,269.92-1,242,369.29-259,638.28

Finding the Fourth Proportional to 828,269.92, 1,242,369.29 and 259,638.28

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Solution

The fourth proportional to 828,269.92, 1,242,369.29 and 259,638.28 is: 389,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,269.92 : 1,242,369.29 = 259,638.28 : x
  2. Step 2: Convert to fraction form
    828,269.92/1,242,369.29 = 259,638.28/x
  3. Step 3: Cross multiply
    828,269.92x = 1,242,369.29 × 259,638.28
  4. Step 4: Simplify right side
    828,269.92x = 322,566,623,123.59
  5. Step 5: Solve for x
    x = 322,566,623,123.59/828,269.92
  6. Step 6: Final answer
    x = 389,446.26

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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.