Home / 730,722.40-1,096,236.96-309,988.96

Finding the Fourth Proportional to 730,722.40, 1,096,236.96 and 309,988.96

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Solution

The fourth proportional to 730,722.40, 1,096,236.96 and 309,988.96 is: 465,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,722.40 : 1,096,236.96 = 309,988.96 : x
  2. Step 2: Convert to fraction form
    730,722.40/1,096,236.96 = 309,988.96/x
  3. Step 3: Cross multiply
    730,722.40x = 1,096,236.96 × 309,988.96
  4. Step 4: Simplify right side
    730,722.40x = 339,821,355,143.96
  5. Step 5: Solve for x
    x = 339,821,355,143.96/730,722.40
  6. Step 6: Final answer
    x = 465,048.50

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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.