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Finding the Fourth Proportional to 984,004.80, 1,476,352.80 and 423,211.20

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Solution

The fourth proportional to 984,004.80, 1,476,352.80 and 423,211.20 is: 634,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,004.80 : 1,476,352.80 = 423,211.20 : x
  2. Step 2: Convert to fraction form
    984,004.80/1,476,352.80 = 423,211.20/x
  3. Step 3: Cross multiply
    984,004.80x = 1,476,352.80 × 423,211.20
  4. Step 4: Simplify right side
    984,004.80x = 624,809,040,111.36
  5. Step 5: Solve for x
    x = 624,809,040,111.36/984,004.80
  6. Step 6: Final answer
    x = 634,965.44

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1.5x scale

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.