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Finding the Fourth Proportional to 536,720.80, 805,599.60 and 326,768.80

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Solution

The fourth proportional to 536,720.80, 805,599.60 and 326,768.80 is: 490,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,720.80 : 805,599.60 = 326,768.80 : x
  2. Step 2: Convert to fraction form
    536,720.80/805,599.60 = 326,768.80/x
  3. Step 3: Cross multiply
    536,720.80x = 805,599.60 × 326,768.80
  4. Step 4: Simplify right side
    536,720.80x = 263,244,814,572.48
  5. Step 5: Solve for x
    x = 263,244,814,572.48/536,720.80
  6. Step 6: Final answer
    x = 490,468.81

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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.