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Finding the Fourth Proportional to 1,247.06, 1,870.64 and 466.98

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Solution

The fourth proportional to 1,247.06, 1,870.64 and 466.98 is: 700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.06 : 1,870.64 = 466.98 : x
  2. Step 2: Convert to fraction form
    1,247.06/1,870.64 = 466.98/x
  3. Step 3: Cross multiply
    1,247.06x = 1,870.64 × 466.98
  4. Step 4: Simplify right side
    1,247.06x = 873,551.47
  5. Step 5: Solve for x
    x = 873,551.47/1,247.06
  6. Step 6: Final answer
    x = 700.49

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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.