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Finding the Fourth Proportional to 1,075.94, 1,614.09 and 528.06

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Solution

The fourth proportional to 1,075.94, 1,614.09 and 528.06 is: 792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.94 : 1,614.09 = 528.06 : x
  2. Step 2: Convert to fraction form
    1,075.94/1,614.09 = 528.06/x
  3. Step 3: Cross multiply
    1,075.94x = 1,614.09 × 528.06
  4. Step 4: Simplify right side
    1,075.94x = 852,336.37
  5. Step 5: Solve for x
    x = 852,336.37/1,075.94
  6. Step 6: Final answer
    x = 792.18

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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.