Home / 839,705.60-1,259,239.20-271,001.45

Finding the Fourth Proportional to 839,705.60, 1,259,239.20 and 271,001.45

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Solution

The fourth proportional to 839,705.60, 1,259,239.20 and 271,001.45 is: 406,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,705.60 : 1,259,239.20 = 271,001.45 : x
  2. Step 2: Convert to fraction form
    839,705.60/1,259,239.20 = 271,001.45/x
  3. Step 3: Cross multiply
    839,705.60x = 1,259,239.20 × 271,001.45
  4. Step 4: Simplify right side
    839,705.60x = 341,255,649,096.84
  5. Step 5: Solve for x
    x = 341,255,649,096.84/839,705.60
  6. Step 6: Final answer
    x = 406,399.16

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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.