Home / 470,984.54-649,963.30-256,129.26

Finding the Fourth Proportional to 470,984.54, 649,963.30 and 256,129.26

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Solution

The fourth proportional to 470,984.54, 649,963.30 and 256,129.26 is: 353,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,984.54 : 649,963.30 = 256,129.26 : x
  2. Step 2: Convert to fraction form
    470,984.54/649,963.30 = 256,129.26/x
  3. Step 3: Cross multiply
    470,984.54x = 649,963.30 × 256,129.26
  4. Step 4: Simplify right side
    470,984.54x = 166,474,619,056.16
  5. Step 5: Solve for x
    x = 166,474,619,056.16/470,984.54
  6. Step 6: Final answer
    x = 353,460.90

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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.