Home / 463,948.12-640,556.90-356,325.84

Finding the Fourth Proportional to 463,948.12, 640,556.90 and 356,325.84

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Solution

The fourth proportional to 463,948.12, 640,556.90 and 356,325.84 is: 491,966.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,948.12 : 640,556.90 = 356,325.84 : x
  2. Step 2: Convert to fraction form
    463,948.12/640,556.90 = 356,325.84/x
  3. Step 3: Cross multiply
    463,948.12x = 640,556.90 × 356,325.84
  4. Step 4: Simplify right side
    463,948.12x = 228,246,975,460.30
  5. Step 5: Solve for x
    x = 228,246,975,460.30/463,948.12
  6. Step 6: Final answer
    x = 491,966.59

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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.