Home / 639,113.28-882,004.64-367,269.12

Finding the Fourth Proportional to 639,113.28, 882,004.64 and 367,269.12

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Solution

The fourth proportional to 639,113.28, 882,004.64 and 367,269.12 is: 506,847.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,113.28 : 882,004.64 = 367,269.12 : x
  2. Step 2: Convert to fraction form
    639,113.28/882,004.64 = 367,269.12/x
  3. Step 3: Cross multiply
    639,113.28x = 882,004.64 × 367,269.12
  4. Step 4: Simplify right side
    639,113.28x = 323,933,067,968.72
  5. Step 5: Solve for x
    x = 323,933,067,968.72/639,113.28
  6. Step 6: Final answer
    x = 506,847.66

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1.5x scale

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.