Home / 867,074.40-1,299,736.80-394,099.20

Finding the Fourth Proportional to 867,074.40, 1,299,736.80 and 394,099.20

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Solution

The fourth proportional to 867,074.40, 1,299,736.80 and 394,099.20 is: 590,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,074.40 : 1,299,736.80 = 394,099.20 : x
  2. Step 2: Convert to fraction form
    867,074.40/1,299,736.80 = 394,099.20/x
  3. Step 3: Cross multiply
    867,074.40x = 1,299,736.80 × 394,099.20
  4. Step 4: Simplify right side
    867,074.40x = 512,225,233,090.56
  5. Step 5: Solve for x
    x = 512,225,233,090.56/867,074.40
  6. Step 6: Final answer
    x = 590,751.19

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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.