Home / 988,857.40-1,483,286.10-324,009.40

Finding the Fourth Proportional to 988,857.40, 1,483,286.10 and 324,009.40

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Solution

The fourth proportional to 988,857.40, 1,483,286.10 and 324,009.40 is: 486,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,857.40 : 1,483,286.10 = 324,009.40 : x
  2. Step 2: Convert to fraction form
    988,857.40/1,483,286.10 = 324,009.40/x
  3. Step 3: Cross multiply
    988,857.40x = 1,483,286.10 × 324,009.40
  4. Step 4: Simplify right side
    988,857.40x = 480,598,639,289.34
  5. Step 5: Solve for x
    x = 480,598,639,289.34/988,857.40
  6. Step 6: Final answer
    x = 486,014.10

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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.