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Finding the Fourth Proportional to 737.46, 1,018.08 and 501.78

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Solution

The fourth proportional to 737.46, 1,018.08 and 501.78 is: 692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.46 : 1,018.08 = 501.78 : x
  2. Step 2: Convert to fraction form
    737.46/1,018.08 = 501.78/x
  3. Step 3: Cross multiply
    737.46x = 1,018.08 × 501.78
  4. Step 4: Simplify right side
    737.46x = 510,852.18
  5. Step 5: Solve for x
    x = 510,852.18/737.46
  6. Step 6: Final answer
    x = 692.72

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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.