Home / 389,440.10-584,390.55-256,704.10

Finding the Fourth Proportional to 389,440.10, 584,390.55 and 256,704.10

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Solution

The fourth proportional to 389,440.10, 584,390.55 and 256,704.10 is: 385,208.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,440.10 : 584,390.55 = 256,704.10 : x
  2. Step 2: Convert to fraction form
    389,440.10/584,390.55 = 256,704.10/x
  3. Step 3: Cross multiply
    389,440.10x = 584,390.55 × 256,704.10
  4. Step 4: Simplify right side
    389,440.10x = 150,015,450,186.26
  5. Step 5: Solve for x
    x = 150,015,450,186.26/389,440.10
  6. Step 6: Final answer
    x = 385,208.02

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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.