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Finding the Fourth Proportional to 568,400.40, 852,445.08 and 213,387.12

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Solution

The fourth proportional to 568,400.40, 852,445.08 and 213,387.12 is: 320,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,400.40 : 852,445.08 = 213,387.12 : x
  2. Step 2: Convert to fraction form
    568,400.40/852,445.08 = 213,387.12/x
  3. Step 3: Cross multiply
    568,400.40x = 852,445.08 × 213,387.12
  4. Step 4: Simplify right side
    568,400.40x = 181,900,800,579.37
  5. Step 5: Solve for x
    x = 181,900,800,579.37/568,400.40
  6. Step 6: Final answer
    x = 320,022.30

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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.