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Finding the Fourth Proportional to 491,372.82, 678,464.01 and 483,525.72

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Solution

The fourth proportional to 491,372.82, 678,464.01 and 483,525.72 is: 667,629.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,372.82 : 678,464.01 = 483,525.72 : x
  2. Step 2: Convert to fraction form
    491,372.82/678,464.01 = 483,525.72/x
  3. Step 3: Cross multiply
    491,372.82x = 678,464.01 × 483,525.72
  4. Step 4: Simplify right side
    491,372.82x = 328,054,798,929.34
  5. Step 5: Solve for x
    x = 328,054,798,929.34/491,372.82
  6. Step 6: Final answer
    x = 667,629.11

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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.