Home / 520,450.74-718,212.69-294,091.38

Finding the Fourth Proportional to 520,450.74, 718,212.69 and 294,091.38

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Solution

The fourth proportional to 520,450.74, 718,212.69 and 294,091.38 is: 405,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,450.74 : 718,212.69 = 294,091.38 : x
  2. Step 2: Convert to fraction form
    520,450.74/718,212.69 = 294,091.38/x
  3. Step 3: Cross multiply
    520,450.74x = 718,212.69 × 294,091.38
  4. Step 4: Simplify right side
    520,450.74x = 211,220,161,135.61
  5. Step 5: Solve for x
    x = 211,220,161,135.61/520,450.74
  6. Step 6: Final answer
    x = 405,840.83

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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.