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Finding the Fourth Proportional to 570.98, 852.34 and 488.36

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Solution

The fourth proportional to 570.98, 852.34 and 488.36 is: 729.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.98 : 852.34 = 488.36 : x
  2. Step 2: Convert to fraction form
    570.98/852.34 = 488.36/x
  3. Step 3: Cross multiply
    570.98x = 852.34 × 488.36
  4. Step 4: Simplify right side
    570.98x = 416,248.76
  5. Step 5: Solve for x
    x = 416,248.76/570.98
  6. Step 6: Final answer
    x = 729.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.