Home / 816,403.79-1,224,609.59-247,789.83

Finding the Fourth Proportional to 816,403.79, 1,224,609.59 and 247,789.83

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Solution

The fourth proportional to 816,403.79, 1,224,609.59 and 247,789.83 is: 371,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,403.79 : 1,224,609.59 = 247,789.83 : x
  2. Step 2: Convert to fraction form
    816,403.79/1,224,609.59 = 247,789.83/x
  3. Step 3: Cross multiply
    816,403.79x = 1,224,609.59 × 247,789.83
  4. Step 4: Simplify right side
    816,403.79x = 303,445,805,940.41
  5. Step 5: Solve for x
    x = 303,445,805,940.41/816,403.79
  6. Step 6: Final answer
    x = 371,685.93

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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.