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Finding the Fourth Proportional to 647,788.24, 894,234.41 and 418,457.33

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Solution

The fourth proportional to 647,788.24, 894,234.41 and 418,457.33 is: 577,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,788.24 : 894,234.41 = 418,457.33 : x
  2. Step 2: Convert to fraction form
    647,788.24/894,234.41 = 418,457.33/x
  3. Step 3: Cross multiply
    647,788.24x = 894,234.41 × 418,457.33
  4. Step 4: Simplify right side
    647,788.24x = 374,198,939,131.55
  5. Step 5: Solve for x
    x = 374,198,939,131.55/647,788.24
  6. Step 6: Final answer
    x = 577,656.27

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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.