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Finding the Fourth Proportional to 543,578.04, 815,338.26 and 169,558.20

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Solution

The fourth proportional to 543,578.04, 815,338.26 and 169,558.20 is: 254,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,578.04 : 815,338.26 = 169,558.20 : x
  2. Step 2: Convert to fraction form
    543,578.04/815,338.26 = 169,558.20/x
  3. Step 3: Cross multiply
    543,578.04x = 815,338.26 × 169,558.20
  4. Step 4: Simplify right side
    543,578.04x = 138,247,287,756.73
  5. Step 5: Solve for x
    x = 138,247,287,756.73/543,578.04
  6. Step 6: Final answer
    x = 254,328.32

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1.5x scale

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.