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Finding the Fourth Proportional to 1,004.80, 1,510.44 and 999.94

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Solution

The fourth proportional to 1,004.80, 1,510.44 and 999.94 is: 1,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.80 : 1,510.44 = 999.94 : x
  2. Step 2: Convert to fraction form
    1,004.80/1,510.44 = 999.94/x
  3. Step 3: Cross multiply
    1,004.80x = 1,510.44 × 999.94
  4. Step 4: Simplify right side
    1,004.80x = 1,510,349.37
  5. Step 5: Solve for x
    x = 1,510,349.37/1,004.80
  6. Step 6: Final answer
    x = 1,503.13

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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.