Home / 490,675.80-677,136.34-272,887.53

Finding the Fourth Proportional to 490,675.80, 677,136.34 and 272,887.53

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Solution

The fourth proportional to 490,675.80, 677,136.34 and 272,887.53 is: 376,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,675.80 : 677,136.34 = 272,887.53 : x
  2. Step 2: Convert to fraction form
    490,675.80/677,136.34 = 272,887.53/x
  3. Step 3: Cross multiply
    490,675.80x = 677,136.34 × 272,887.53
  4. Step 4: Simplify right side
    490,675.80x = 184,782,063,295.84
  5. Step 5: Solve for x
    x = 184,782,063,295.84/490,675.80
  6. Step 6: Final answer
    x = 376,586.87

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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.