Home / 867,071.40-1,299,732.30-394,096.20

Finding the Fourth Proportional to 867,071.40, 1,299,732.30 and 394,096.20

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Solution

The fourth proportional to 867,071.40, 1,299,732.30 and 394,096.20 is: 590,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,071.40 : 1,299,732.30 = 394,096.20 : x
  2. Step 2: Convert to fraction form
    867,071.40/1,299,732.30 = 394,096.20/x
  3. Step 3: Cross multiply
    867,071.40x = 1,299,732.30 × 394,096.20
  4. Step 4: Simplify right side
    867,071.40x = 512,219,560,447.26
  5. Step 5: Solve for x
    x = 512,219,560,447.26/867,071.40
  6. Step 6: Final answer
    x = 590,746.69

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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.