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Finding the Fourth Proportional to 542,203.77, 748,284.39 and 300,509.49

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Solution

The fourth proportional to 542,203.77, 748,284.39 and 300,509.49 is: 414,727.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,203.77 : 748,284.39 = 300,509.49 : x
  2. Step 2: Convert to fraction form
    542,203.77/748,284.39 = 300,509.49/x
  3. Step 3: Cross multiply
    542,203.77x = 748,284.39 × 300,509.49
  4. Step 4: Simplify right side
    542,203.77x = 224,866,560,413.86
  5. Step 5: Solve for x
    x = 224,866,560,413.86/542,203.77
  6. Step 6: Final answer
    x = 414,727.03

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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.