Home / 409,389.12-613,967.04-259,403.04

Finding the Fourth Proportional to 409,389.12, 613,967.04 and 259,403.04

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Solution

The fourth proportional to 409,389.12, 613,967.04 and 259,403.04 is: 389,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,389.12 : 613,967.04 = 259,403.04 : x
  2. Step 2: Convert to fraction form
    409,389.12/613,967.04 = 259,403.04/x
  3. Step 3: Cross multiply
    409,389.12x = 613,967.04 × 259,403.04
  4. Step 4: Simplify right side
    409,389.12x = 159,264,916,635.80
  5. Step 5: Solve for x
    x = 159,264,916,635.80/409,389.12
  6. Step 6: Final answer
    x = 389,030.65

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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.