Home / 899,181.43-1,240,855.71-491,274.49

Finding the Fourth Proportional to 899,181.43, 1,240,855.71 and 491,274.49

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Solution

The fourth proportional to 899,181.43, 1,240,855.71 and 491,274.49 is: 677,950.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,181.43 : 1,240,855.71 = 491,274.49 : x
  2. Step 2: Convert to fraction form
    899,181.43/1,240,855.71 = 491,274.49/x
  3. Step 3: Cross multiply
    899,181.43x = 1,240,855.71 × 491,274.49
  4. Step 4: Simplify right side
    899,181.43x = 609,600,757,184.34
  5. Step 5: Solve for x
    x = 609,600,757,184.34/899,181.43
  6. Step 6: Final answer
    x = 677,950.79

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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.