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Finding the Fourth Proportional to 1,050.57, 1,446.53 and 900.99

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Solution

The fourth proportional to 1,050.57, 1,446.53 and 900.99 is: 1,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.57 : 1,446.53 = 900.99 : x
  2. Step 2: Convert to fraction form
    1,050.57/1,446.53 = 900.99/x
  3. Step 3: Cross multiply
    1,050.57x = 1,446.53 × 900.99
  4. Step 4: Simplify right side
    1,050.57x = 1,303,304.56
  5. Step 5: Solve for x
    x = 1,303,304.56/1,050.57
  6. Step 6: Final answer
    x = 1,240.57

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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.