Home / 819,060.72-1,229,144.66-286,586.36

Finding the Fourth Proportional to 819,060.72, 1,229,144.66 and 286,586.36

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Solution

The fourth proportional to 819,060.72, 1,229,144.66 and 286,586.36 is: 430,073.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,060.72 : 1,229,144.66 = 286,586.36 : x
  2. Step 2: Convert to fraction form
    819,060.72/1,229,144.66 = 286,586.36/x
  3. Step 3: Cross multiply
    819,060.72x = 1,229,144.66 × 286,586.36
  4. Step 4: Simplify right side
    819,060.72x = 352,256,094,022.84
  5. Step 5: Solve for x
    x = 352,256,094,022.84/819,060.72
  6. Step 6: Final answer
    x = 430,073.24

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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.