Home / 486,071.12-670,780-271,220.24

Finding the Fourth Proportional to 486,071.12, 670,780 and 271,220.24

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Solution

The fourth proportional to 486,071.12, 670,780 and 271,220.24 is: 374,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,071.12 : 670,780 = 271,220.24 : x
  2. Step 2: Convert to fraction form
    486,071.12/670,780 = 271,220.24/x
  3. Step 3: Cross multiply
    486,071.12x = 670,780 × 271,220.24
  4. Step 4: Simplify right side
    486,071.12x = 181,929,112,587.20
  5. Step 5: Solve for x
    x = 181,929,112,587.20/486,071.12
  6. Step 6: Final answer
    x = 374,284.97

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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.