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Finding the Fourth Proportional to 545,181.36, 818,121.96 and 264,545.52

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Solution

The fourth proportional to 545,181.36, 818,121.96 and 264,545.52 is: 396,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,181.36 : 818,121.96 = 264,545.52 : x
  2. Step 2: Convert to fraction form
    545,181.36/818,121.96 = 264,545.52/x
  3. Step 3: Cross multiply
    545,181.36x = 818,121.96 × 264,545.52
  4. Step 4: Simplify right side
    545,181.36x = 216,430,499,331.62
  5. Step 5: Solve for x
    x = 216,430,499,331.62/545,181.36
  6. Step 6: Final answer
    x = 396,988.08

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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.