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Finding the Fourth Proportional to 570.12, 855.99 and 529.08

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Solution

The fourth proportional to 570.12, 855.99 and 529.08 is: 794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.12 : 855.99 = 529.08 : x
  2. Step 2: Convert to fraction form
    570.12/855.99 = 529.08/x
  3. Step 3: Cross multiply
    570.12x = 855.99 × 529.08
  4. Step 4: Simplify right side
    570.12x = 452,887.19
  5. Step 5: Solve for x
    x = 452,887.19/570.12
  6. Step 6: Final answer
    x = 794.37

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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.