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Finding the Fourth Proportional to 985.06, 1,475.94 and 599.50

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Solution

The fourth proportional to 985.06, 1,475.94 and 599.50 is: 898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    985.06 : 1,475.94 = 599.50 : x
  2. Step 2: Convert to fraction form
    985.06/1,475.94 = 599.50/x
  3. Step 3: Cross multiply
    985.06x = 1,475.94 × 599.50
  4. Step 4: Simplify right side
    985.06x = 884,826.03
  5. Step 5: Solve for x
    x = 884,826.03/985.06
  6. Step 6: Final answer
    x = 898.25

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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.