Home / 713,899.69-985,045.09-408,072.97

Finding the Fourth Proportional to 713,899.69, 985,045.09 and 408,072.97

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Solution

The fourth proportional to 713,899.69, 985,045.09 and 408,072.97 is: 563,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,899.69 : 985,045.09 = 408,072.97 : x
  2. Step 2: Convert to fraction form
    713,899.69/985,045.09 = 408,072.97/x
  3. Step 3: Cross multiply
    713,899.69x = 985,045.09 × 408,072.97
  4. Step 4: Simplify right side
    713,899.69x = 401,970,275,460.22
  5. Step 5: Solve for x
    x = 401,970,275,460.22/713,899.69
  6. Step 6: Final answer
    x = 563,062.68

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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.