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Finding the Fourth Proportional to 497,965.66, 687,245.83 and 304,486.77

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Solution

The fourth proportional to 497,965.66, 687,245.83 and 304,486.77 is: 420,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,965.66 : 687,245.83 = 304,486.77 : x
  2. Step 2: Convert to fraction form
    497,965.66/687,245.83 = 304,486.77/x
  3. Step 3: Cross multiply
    497,965.66x = 687,245.83 × 304,486.77
  4. Step 4: Simplify right side
    497,965.66x = 209,257,259,536.44
  5. Step 5: Solve for x
    x = 209,257,259,536.44/497,965.66
  6. Step 6: Final answer
    x = 420,224.28

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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.