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Finding the Fourth Proportional to 899.00, 1,348.91 and 437.20

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Solution

The fourth proportional to 899.00, 1,348.91 and 437.20 is: 656.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.00 : 1,348.91 = 437.20 : x
  2. Step 2: Convert to fraction form
    899.00/1,348.91 = 437.20/x
  3. Step 3: Cross multiply
    899.00x = 1,348.91 × 437.20
  4. Step 4: Simplify right side
    899.00x = 589,744.59
  5. Step 5: Solve for x
    x = 589,744.59/899.00
  6. Step 6: Final answer
    x = 656.00

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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.