Home / 828,122.24-1,242,183.64-259,547.45

Finding the Fourth Proportional to 828,122.24, 1,242,183.64 and 259,547.45

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Solution

The fourth proportional to 828,122.24, 1,242,183.64 and 259,547.45 is: 389,321.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,122.24 : 1,242,183.64 = 259,547.45 : x
  2. Step 2: Convert to fraction form
    828,122.24/1,242,183.64 = 259,547.45/x
  3. Step 3: Cross multiply
    828,122.24x = 1,242,183.64 × 259,547.45
  4. Step 4: Simplify right side
    828,122.24x = 322,405,596,193.72
  5. Step 5: Solve for x
    x = 322,405,596,193.72/828,122.24
  6. Step 6: Final answer
    x = 389,321.26

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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.