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Finding the Fourth Proportional to 1,528.52, 2,292.77 and 554.69

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Solution

The fourth proportional to 1,528.52, 2,292.77 and 554.69 is: 832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.52 : 2,292.77 = 554.69 : x
  2. Step 2: Convert to fraction form
    1,528.52/2,292.77 = 554.69/x
  3. Step 3: Cross multiply
    1,528.52x = 2,292.77 × 554.69
  4. Step 4: Simplify right side
    1,528.52x = 1,271,783.71
  5. Step 5: Solve for x
    x = 1,271,783.71/1,528.52
  6. Step 6: Final answer
    x = 832.04

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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.