Home / 872,859.64-1,204,538.42-490,878.22

Finding the Fourth Proportional to 872,859.64, 1,204,538.42 and 490,878.22

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Solution

The fourth proportional to 872,859.64, 1,204,538.42 and 490,878.22 is: 677,407.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,859.64 : 1,204,538.42 = 490,878.22 : x
  2. Step 2: Convert to fraction form
    872,859.64/1,204,538.42 = 490,878.22/x
  3. Step 3: Cross multiply
    872,859.64x = 1,204,538.42 × 490,878.22
  4. Step 4: Simplify right side
    872,859.64x = 591,281,675,531.21
  5. Step 5: Solve for x
    x = 591,281,675,531.21/872,859.64
  6. Step 6: Final answer
    x = 677,407.51

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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.