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Finding the Fourth Proportional to 542,353.57, 748,369.26 and 300,636

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Solution

The fourth proportional to 542,353.57, 748,369.26 and 300,636 is: 414,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,353.57 : 748,369.26 = 300,636 : x
  2. Step 2: Convert to fraction form
    542,353.57/748,369.26 = 300,636/x
  3. Step 3: Cross multiply
    542,353.57x = 748,369.26 × 300,636
  4. Step 4: Simplify right side
    542,353.57x = 224,986,740,849.36
  5. Step 5: Solve for x
    x = 224,986,740,849.36/542,353.57
  6. Step 6: Final answer
    x = 414,834.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.