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Finding the Fourth Proportional to 620,994.42, 931,491.60 and 200,270.28

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Solution

The fourth proportional to 620,994.42, 931,491.60 and 200,270.28 is: 300,405.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,994.42 : 931,491.60 = 200,270.28 : x
  2. Step 2: Convert to fraction form
    620,994.42/931,491.60 = 200,270.28/x
  3. Step 3: Cross multiply
    620,994.42x = 931,491.60 × 200,270.28
  4. Step 4: Simplify right side
    620,994.42x = 186,550,083,549.65
  5. Step 5: Solve for x
    x = 186,550,083,549.65/620,994.42
  6. Step 6: Final answer
    x = 300,405.41

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Similar ratio
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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.