Home / 538,982.20-808,475.70-139,594.60

Finding the Fourth Proportional to 538,982.20, 808,475.70 and 139,594.60

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Solution

The fourth proportional to 538,982.20, 808,475.70 and 139,594.60 is: 209,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,982.20 : 808,475.70 = 139,594.60 : x
  2. Step 2: Convert to fraction form
    538,982.20/808,475.70 = 139,594.60/x
  3. Step 3: Cross multiply
    538,982.20x = 808,475.70 × 139,594.60
  4. Step 4: Simplify right side
    538,982.20x = 112,858,841,951.22
  5. Step 5: Solve for x
    x = 112,858,841,951.22/538,982.20
  6. Step 6: Final answer
    x = 209,392.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.