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Finding the Fourth Proportional to 542,353.89, 748,369.77 and 300,636.39

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Solution

The fourth proportional to 542,353.89, 748,369.77 and 300,636.39 is: 414,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,353.89 : 748,369.77 = 300,636.39 : x
  2. Step 2: Convert to fraction form
    542,353.89/748,369.77 = 300,636.39/x
  3. Step 3: Cross multiply
    542,353.89x = 748,369.77 × 300,636.39
  4. Step 4: Simplify right side
    542,353.89x = 224,987,186,037.93
  5. Step 5: Solve for x
    x = 224,987,186,037.93/542,353.89
  6. Step 6: Final answer
    x = 414,834.65

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1.5x scale

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.