Home / 867,069.40-1,299,729.30-394,094.20

Finding the Fourth Proportional to 867,069.40, 1,299,729.30 and 394,094.20

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Solution

The fourth proportional to 867,069.40, 1,299,729.30 and 394,094.20 is: 590,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,069.40 : 1,299,729.30 = 394,094.20 : x
  2. Step 2: Convert to fraction form
    867,069.40/1,299,729.30 = 394,094.20/x
  3. Step 3: Cross multiply
    867,069.40x = 1,299,729.30 × 394,094.20
  4. Step 4: Simplify right side
    867,069.40x = 512,215,778,700.06
  5. Step 5: Solve for x
    x = 512,215,778,700.06/867,069.40
  6. Step 6: Final answer
    x = 590,743.69

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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.