Home / 816,615.60-1,224,923.40-247,995.60

Finding the Fourth Proportional to 816,615.60, 1,224,923.40 and 247,995.60

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Solution

The fourth proportional to 816,615.60, 1,224,923.40 and 247,995.60 is: 371,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,615.60 : 1,224,923.40 = 247,995.60 : x
  2. Step 2: Convert to fraction form
    816,615.60/1,224,923.40 = 247,995.60/x
  3. Step 3: Cross multiply
    816,615.60x = 1,224,923.40 × 247,995.60
  4. Step 4: Simplify right side
    816,615.60x = 303,775,613,537.04
  5. Step 5: Solve for x
    x = 303,775,613,537.04/816,615.60
  6. Step 6: Final answer
    x = 371,993.40

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Half scale
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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.