Home / 721,026.78-1,081,692.45-271,738.14

Finding the Fourth Proportional to 721,026.78, 1,081,692.45 and 271,738.14

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Solution

The fourth proportional to 721,026.78, 1,081,692.45 and 271,738.14 is: 407,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,026.78 : 1,081,692.45 = 271,738.14 : x
  2. Step 2: Convert to fraction form
    721,026.78/1,081,692.45 = 271,738.14/x
  3. Step 3: Cross multiply
    721,026.78x = 1,081,692.45 × 271,738.14
  4. Step 4: Simplify right side
    721,026.78x = 293,937,094,415.04
  5. Step 5: Solve for x
    x = 293,937,094,415.04/721,026.78
  6. Step 6: Final answer
    x = 407,664.60

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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.