Home / 641,725.45-885,673.77-369,741.22

Finding the Fourth Proportional to 641,725.45, 885,673.77 and 369,741.22

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Solution

The fourth proportional to 641,725.45, 885,673.77 and 369,741.22 is: 510,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,725.45 : 885,673.77 = 369,741.22 : x
  2. Step 2: Convert to fraction form
    641,725.45/885,673.77 = 369,741.22/x
  3. Step 3: Cross multiply
    641,725.45x = 885,673.77 × 369,741.22
  4. Step 4: Simplify right side
    641,725.45x = 327,470,100,241.80
  5. Step 5: Solve for x
    x = 327,470,100,241.80/641,725.45
  6. Step 6: Final answer
    x = 510,296.26

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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.