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Finding the Fourth Proportional to 737.19, 1,017.18 and 438.32

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Solution

The fourth proportional to 737.19, 1,017.18 and 438.32 is: 604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.19 : 1,017.18 = 438.32 : x
  2. Step 2: Convert to fraction form
    737.19/1,017.18 = 438.32/x
  3. Step 3: Cross multiply
    737.19x = 1,017.18 × 438.32
  4. Step 4: Simplify right side
    737.19x = 445,852.88
  5. Step 5: Solve for x
    x = 445,852.88/737.19
  6. Step 6: Final answer
    x = 604.80

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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.