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Finding the Fourth Proportional to 1,048.35, 1,571.38 and 527.52

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Solution

The fourth proportional to 1,048.35, 1,571.38 and 527.52 is: 790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.35 : 1,571.38 = 527.52 : x
  2. Step 2: Convert to fraction form
    1,048.35/1,571.38 = 527.52/x
  3. Step 3: Cross multiply
    1,048.35x = 1,571.38 × 527.52
  4. Step 4: Simplify right side
    1,048.35x = 828,933.06
  5. Step 5: Solve for x
    x = 828,933.06/1,048.35
  6. Step 6: Final answer
    x = 790.70

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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.