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Finding the Fourth Proportional to 542,288.22, 812,288.00 and 435,091.81

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Solution

The fourth proportional to 542,288.22, 812,288.00 and 435,091.81 is: 651,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,288.22 : 812,288.00 = 435,091.81 : x
  2. Step 2: Convert to fraction form
    542,288.22/812,288.00 = 435,091.81/x
  3. Step 3: Cross multiply
    542,288.22x = 812,288.00 × 435,091.81
  4. Step 4: Simplify right side
    542,288.22x = 353,419,856,578.50
  5. Step 5: Solve for x
    x = 353,419,856,578.50/542,288.22
  6. Step 6: Final answer
    x = 651,719.58

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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.