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Finding the Fourth Proportional to 570.92, 788.64 and 448.12

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Solution

The fourth proportional to 570.92, 788.64 and 448.12 is: 619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.92 : 788.64 = 448.12 : x
  2. Step 2: Convert to fraction form
    570.92/788.64 = 448.12/x
  3. Step 3: Cross multiply
    570.92x = 788.64 × 448.12
  4. Step 4: Simplify right side
    570.92x = 353,405.36
  5. Step 5: Solve for x
    x = 353,405.36/570.92
  6. Step 6: Final answer
    x = 619.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.