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Finding the Fourth Proportional to 639,157.26, 882,007.47 and 367,033.74

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Solution

The fourth proportional to 639,157.26, 882,007.47 and 367,033.74 is: 506,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,157.26 : 882,007.47 = 367,033.74 : x
  2. Step 2: Convert to fraction form
    639,157.26/882,007.47 = 367,033.74/x
  3. Step 3: Cross multiply
    639,157.26x = 882,007.47 × 367,033.74
  4. Step 4: Simplify right side
    639,157.26x = 323,726,500,422.04
  5. Step 5: Solve for x
    x = 323,726,500,422.04/639,157.26
  6. Step 6: Final answer
    x = 506,489.59

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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.