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Finding the Fourth Proportional to 540,513.36, 745,908 and 325,662.48

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Solution

The fourth proportional to 540,513.36, 745,908 and 325,662.48 is: 449,413.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,513.36 : 745,908 = 325,662.48 : x
  2. Step 2: Convert to fraction form
    540,513.36/745,908 = 325,662.48/x
  3. Step 3: Cross multiply
    540,513.36x = 745,908 × 325,662.48
  4. Step 4: Simplify right side
    540,513.36x = 242,914,249,131.84
  5. Step 5: Solve for x
    x = 242,914,249,131.84/540,513.36
  6. Step 6: Final answer
    x = 449,413.96

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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.