Home / 816,609.38-1,126,920.94-458,913.38

Finding the Fourth Proportional to 816,609.38, 1,126,920.94 and 458,913.38

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Solution

The fourth proportional to 816,609.38, 1,126,920.94 and 458,913.38 is: 633,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,609.38 : 1,126,920.94 = 458,913.38 : x
  2. Step 2: Convert to fraction form
    816,609.38/1,126,920.94 = 458,913.38/x
  3. Step 3: Cross multiply
    816,609.38x = 1,126,920.94 × 458,913.38
  4. Step 4: Simplify right side
    816,609.38x = 517,159,090,786.29
  5. Step 5: Solve for x
    x = 517,159,090,786.29/816,609.38
  6. Step 6: Final answer
    x = 633,300.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.