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Finding the Fourth Proportional to 984.74, 1,477.01 and 573.62

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Solution

The fourth proportional to 984.74, 1,477.01 and 573.62 is: 860.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.74 : 1,477.01 = 573.62 : x
  2. Step 2: Convert to fraction form
    984.74/1,477.01 = 573.62/x
  3. Step 3: Cross multiply
    984.74x = 1,477.01 × 573.62
  4. Step 4: Simplify right side
    984.74x = 847,236.53
  5. Step 5: Solve for x
    x = 847,236.53/984.74
  6. Step 6: Final answer
    x = 860.37

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Double scale
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1.5x scale

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.