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Finding the Fourth Proportional to 1,013.70, 1,520.10 and 466.06

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Solution

The fourth proportional to 1,013.70, 1,520.10 and 466.06 is: 698.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.70 : 1,520.10 = 466.06 : x
  2. Step 2: Convert to fraction form
    1,013.70/1,520.10 = 466.06/x
  3. Step 3: Cross multiply
    1,013.70x = 1,520.10 × 466.06
  4. Step 4: Simplify right side
    1,013.70x = 708,457.81
  5. Step 5: Solve for x
    x = 708,457.81/1,013.70
  6. Step 6: Final answer
    x = 698.88

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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.