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Finding the Fourth Proportional to 481,763.80, 721,868.10 and 303,952.60

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Solution

The fourth proportional to 481,763.80, 721,868.10 and 303,952.60 is: 455,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,763.80 : 721,868.10 = 303,952.60 : x
  2. Step 2: Convert to fraction form
    481,763.80/721,868.10 = 303,952.60/x
  3. Step 3: Cross multiply
    481,763.80x = 721,868.10 × 303,952.60
  4. Step 4: Simplify right side
    481,763.80x = 219,413,685,852.06
  5. Step 5: Solve for x
    x = 219,413,685,852.06/481,763.80
  6. Step 6: Final answer
    x = 455,438.30

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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.