Home / 740,980.67-1,111,561.91-208,502.22

Finding the Fourth Proportional to 740,980.67, 1,111,561.91 and 208,502.22

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Solution

The fourth proportional to 740,980.67, 1,111,561.91 and 208,502.22 is: 312,778.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,980.67 : 1,111,561.91 = 208,502.22 : x
  2. Step 2: Convert to fraction form
    740,980.67/1,111,561.91 = 208,502.22/x
  3. Step 3: Cross multiply
    740,980.67x = 1,111,561.91 × 208,502.22
  4. Step 4: Simplify right side
    740,980.67x = 231,763,124,859.93
  5. Step 5: Solve for x
    x = 231,763,124,859.93/740,980.67
  6. Step 6: Final answer
    x = 312,778.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.