Home / 846,123.78-1,269,190.05-285,163.14

Finding the Fourth Proportional to 846,123.78, 1,269,190.05 and 285,163.14

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Solution

The fourth proportional to 846,123.78, 1,269,190.05 and 285,163.14 is: 427,746.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,123.78 : 1,269,190.05 = 285,163.14 : x
  2. Step 2: Convert to fraction form
    846,123.78/1,269,190.05 = 285,163.14/x
  3. Step 3: Cross multiply
    846,123.78x = 1,269,190.05 × 285,163.14
  4. Step 4: Simplify right side
    846,123.78x = 361,926,219,914.76
  5. Step 5: Solve for x
    x = 361,926,219,914.76/846,123.78
  6. Step 6: Final answer
    x = 427,746.19

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Double scale
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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.