Home / 987,563.81-1,481,346.43-239,609.81

Finding the Fourth Proportional to 987,563.81, 1,481,346.43 and 239,609.81

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Solution

The fourth proportional to 987,563.81, 1,481,346.43 and 239,609.81 is: 359,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,563.81 : 1,481,346.43 = 239,609.81 : x
  2. Step 2: Convert to fraction form
    987,563.81/1,481,346.43 = 239,609.81/x
  3. Step 3: Cross multiply
    987,563.81x = 1,481,346.43 × 239,609.81
  4. Step 4: Simplify right side
    987,563.81x = 354,945,139,740.82
  5. Step 5: Solve for x
    x = 354,945,139,740.82/987,563.81
  6. Step 6: Final answer
    x = 359,414.89

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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.