Home / 828,109.77-1,242,165.09-259,535.16

Finding the Fourth Proportional to 828,109.77, 1,242,165.09 and 259,535.16

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Solution

The fourth proportional to 828,109.77, 1,242,165.09 and 259,535.16 is: 389,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,109.77 : 1,242,165.09 = 259,535.16 : x
  2. Step 2: Convert to fraction form
    828,109.77/1,242,165.09 = 259,535.16/x
  3. Step 3: Cross multiply
    828,109.77x = 1,242,165.09 × 259,535.16
  4. Step 4: Simplify right side
    828,109.77x = 322,385,509,834.20
  5. Step 5: Solve for x
    x = 322,385,509,834.20/828,109.77
  6. Step 6: Final answer
    x = 389,302.87

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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.