Home / 343,447.96-512,670.34-318,121.36

Finding the Fourth Proportional to 343,447.96, 512,670.34 and 318,121.36

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Solution

The fourth proportional to 343,447.96, 512,670.34 and 318,121.36 is: 474,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,447.96 : 512,670.34 = 318,121.36 : x
  2. Step 2: Convert to fraction form
    343,447.96/512,670.34 = 318,121.36/x
  3. Step 3: Cross multiply
    343,447.96x = 512,670.34 × 318,121.36
  4. Step 4: Simplify right side
    343,447.96x = 163,091,388,388.69
  5. Step 5: Solve for x
    x = 163,091,388,388.69/343,447.96
  6. Step 6: Final answer
    x = 474,864.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.