Home / 839,820.30-1,259,730.45-271,200.30

Finding the Fourth Proportional to 839,820.30, 1,259,730.45 and 271,200.30

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Solution

The fourth proportional to 839,820.30, 1,259,730.45 and 271,200.30 is: 406,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,820.30 : 1,259,730.45 = 271,200.30 : x
  2. Step 2: Convert to fraction form
    839,820.30/1,259,730.45 = 271,200.30/x
  3. Step 3: Cross multiply
    839,820.30x = 1,259,730.45 × 271,200.30
  4. Step 4: Simplify right side
    839,820.30x = 341,639,275,959.14
  5. Step 5: Solve for x
    x = 341,639,275,959.14/839,820.30
  6. Step 6: Final answer
    x = 406,800.45

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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.