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Finding the Fourth Proportional to 860.46, 1,185.63 and 583.98

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Solution

The fourth proportional to 860.46, 1,185.63 and 583.98 is: 804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    860.46 : 1,185.63 = 583.98 : x
  2. Step 2: Convert to fraction form
    860.46/1,185.63 = 583.98/x
  3. Step 3: Cross multiply
    860.46x = 1,185.63 × 583.98
  4. Step 4: Simplify right side
    860.46x = 692,384.21
  5. Step 5: Solve for x
    x = 692,384.21/860.46
  6. Step 6: Final answer
    x = 804.67

Related Problems

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Double scale
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1.5x scale

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.