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Finding the Fourth Proportional to 538,880.56, 743,620.80 and 297,164.68

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Solution

The fourth proportional to 538,880.56, 743,620.80 and 297,164.68 is: 410,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,880.56 : 743,620.80 = 297,164.68 : x
  2. Step 2: Convert to fraction form
    538,880.56/743,620.80 = 297,164.68/x
  3. Step 3: Cross multiply
    538,880.56x = 743,620.80 × 297,164.68
  4. Step 4: Simplify right side
    538,880.56x = 220,977,837,073.34
  5. Step 5: Solve for x
    x = 220,977,837,073.34/538,880.56
  6. Step 6: Final answer
    x = 410,068.30

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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.