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Finding the Fourth Proportional to 568,457.20, 784,467.12 and 313,808.32

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Solution

The fourth proportional to 568,457.20, 784,467.12 and 313,808.32 is: 433,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,457.20 : 784,467.12 = 313,808.32 : x
  2. Step 2: Convert to fraction form
    568,457.20/784,467.12 = 313,808.32/x
  3. Step 3: Cross multiply
    568,457.20x = 784,467.12 × 313,808.32
  4. Step 4: Simplify right side
    568,457.20x = 246,172,309,022.44
  5. Step 5: Solve for x
    x = 246,172,309,022.44/568,457.20
  6. Step 6: Final answer
    x = 433,053.38

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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.