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Finding the Fourth Proportional to 545,218.44, 752,423.49 and 303,485.64

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Solution

The fourth proportional to 545,218.44, 752,423.49 and 303,485.64 is: 418,822.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,218.44 : 752,423.49 = 303,485.64 : x
  2. Step 2: Convert to fraction form
    545,218.44/752,423.49 = 303,485.64/x
  3. Step 3: Cross multiply
    545,218.44x = 752,423.49 × 303,485.64
  4. Step 4: Simplify right side
    545,218.44x = 228,349,724,413.68
  5. Step 5: Solve for x
    x = 228,349,724,413.68/545,218.44
  6. Step 6: Final answer
    x = 418,822.45

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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.