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Finding the Fourth Proportional to 1,065.54, 1,595.49 and 577.08

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Solution

The fourth proportional to 1,065.54, 1,595.49 and 577.08 is: 864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.54 : 1,595.49 = 577.08 : x
  2. Step 2: Convert to fraction form
    1,065.54/1,595.49 = 577.08/x
  3. Step 3: Cross multiply
    1,065.54x = 1,595.49 × 577.08
  4. Step 4: Simplify right side
    1,065.54x = 920,725.37
  5. Step 5: Solve for x
    x = 920,725.37/1,065.54
  6. Step 6: Final answer
    x = 864.09

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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.