Home / 470,978.04-649,954.26-256,122.75

Finding the Fourth Proportional to 470,978.04, 649,954.26 and 256,122.75

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Solution

The fourth proportional to 470,978.04, 649,954.26 and 256,122.75 is: 353,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,978.04 : 649,954.26 = 256,122.75 : x
  2. Step 2: Convert to fraction form
    470,978.04/649,954.26 = 256,122.75/x
  3. Step 3: Cross multiply
    470,978.04x = 649,954.26 × 256,122.75
  4. Step 4: Simplify right side
    470,978.04x = 166,468,072,445.42
  5. Step 5: Solve for x
    x = 166,468,072,445.42/470,978.04
  6. Step 6: Final answer
    x = 353,451.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.