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Finding the Fourth Proportional to 543,108.99, 749,479.05 and 301,389.60

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Solution

The fourth proportional to 543,108.99, 749,479.05 and 301,389.60 is: 415,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,108.99 : 749,479.05 = 301,389.60 : x
  2. Step 2: Convert to fraction form
    543,108.99/749,479.05 = 301,389.60/x
  3. Step 3: Cross multiply
    543,108.99x = 749,479.05 × 301,389.60
  4. Step 4: Simplify right side
    543,108.99x = 225,885,191,087.88
  5. Step 5: Solve for x
    x = 225,885,191,087.88/543,108.99
  6. Step 6: Final answer
    x = 415,911.35

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