Home / 490,664.49-677,117.40-272,868.42

Finding the Fourth Proportional to 490,664.49, 677,117.40 and 272,868.42

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Solution

The fourth proportional to 490,664.49, 677,117.40 and 272,868.42 is: 376,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,664.49 : 677,117.40 = 272,868.42 : x
  2. Step 2: Convert to fraction form
    490,664.49/677,117.40 = 272,868.42/x
  3. Step 3: Cross multiply
    490,664.49x = 677,117.40 × 272,868.42
  4. Step 4: Simplify right side
    490,664.49x = 184,763,955,471.49
  5. Step 5: Solve for x
    x = 184,763,955,471.49/490,664.49
  6. Step 6: Final answer
    x = 376,558.65

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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.