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Finding the Fourth Proportional to 548,858.78, 757,413.10 and 300,500.23

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Solution

The fourth proportional to 548,858.78, 757,413.10 and 300,500.23 is: 414,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,858.78 : 757,413.10 = 300,500.23 : x
  2. Step 2: Convert to fraction form
    548,858.78/757,413.10 = 300,500.23/x
  3. Step 3: Cross multiply
    548,858.78x = 757,413.10 × 300,500.23
  4. Step 4: Simplify right side
    548,858.78x = 227,602,811,502.41
  5. Step 5: Solve for x
    x = 227,602,811,502.41/548,858.78
  6. Step 6: Final answer
    x = 414,683.74

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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.