Home / 486,495.36-671,364-271,635.12

Finding the Fourth Proportional to 486,495.36, 671,364 and 271,635.12

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Solution

The fourth proportional to 486,495.36, 671,364 and 271,635.12 is: 374,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,495.36 : 671,364 = 271,635.12 : x
  2. Step 2: Convert to fraction form
    486,495.36/671,364 = 271,635.12/x
  3. Step 3: Cross multiply
    486,495.36x = 671,364 × 271,635.12
  4. Step 4: Simplify right side
    486,495.36x = 182,366,040,703.68
  5. Step 5: Solve for x
    x = 182,366,040,703.68/486,495.36
  6. Step 6: Final answer
    x = 374,856.69

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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.