Home / 470,979.02-649,955.40-256,121.12

Finding the Fourth Proportional to 470,979.02, 649,955.40 and 256,121.12

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Solution

The fourth proportional to 470,979.02, 649,955.40 and 256,121.12 is: 353,449.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,979.02 : 649,955.40 = 256,121.12 : x
  2. Step 2: Convert to fraction form
    470,979.02/649,955.40 = 256,121.12/x
  3. Step 3: Cross multiply
    470,979.02x = 649,955.40 × 256,121.12
  4. Step 4: Simplify right side
    470,979.02x = 166,467,304,998.05
  5. Step 5: Solve for x
    x = 166,467,304,998.05/470,979.02
  6. Step 6: Final answer
    x = 353,449.51

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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.