Home / 486,334.22-671,138.64-282,435.26

Finding the Fourth Proportional to 486,334.22, 671,138.64 and 282,435.26

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Solution

The fourth proportional to 486,334.22, 671,138.64 and 282,435.26 is: 389,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,334.22 : 671,138.64 = 282,435.26 : x
  2. Step 2: Convert to fraction form
    486,334.22/671,138.64 = 282,435.26/x
  3. Step 3: Cross multiply
    486,334.22x = 671,138.64 × 282,435.26
  4. Step 4: Simplify right side
    486,334.22x = 189,553,212,928.75
  5. Step 5: Solve for x
    x = 189,553,212,928.75/486,334.22
  6. Step 6: Final answer
    x = 389,759.16

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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.