Home / 837,976.91-1,257,090.43-388,743.19

Finding the Fourth Proportional to 837,976.91, 1,257,090.43 and 388,743.19

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Solution

The fourth proportional to 837,976.91, 1,257,090.43 and 388,743.19 is: 583,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,976.91 : 1,257,090.43 = 388,743.19 : x
  2. Step 2: Convert to fraction form
    837,976.91/1,257,090.43 = 388,743.19/x
  3. Step 3: Cross multiply
    837,976.91x = 1,257,090.43 × 388,743.19
  4. Step 4: Simplify right side
    837,976.91x = 488,685,343,876.67
  5. Step 5: Solve for x
    x = 488,685,343,876.67/837,976.91
  6. Step 6: Final answer
    x = 583,172.80

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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.