Home / 448,561.09-672,749.89-128,627.26

Finding the Fourth Proportional to 448,561.09, 672,749.89 and 128,627.26

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Solution

The fourth proportional to 448,561.09, 672,749.89 and 128,627.26 is: 192,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,561.09 : 672,749.89 = 128,627.26 : x
  2. Step 2: Convert to fraction form
    448,561.09/672,749.89 = 128,627.26/x
  3. Step 3: Cross multiply
    448,561.09x = 672,749.89 × 128,627.26
  4. Step 4: Simplify right side
    448,561.09x = 86,533,973,012.56
  5. Step 5: Solve for x
    x = 86,533,973,012.56/448,561.09
  6. Step 6: Final answer
    x = 192,914.58

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1.5x scale

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.