Home / 853,359.29-1,280,088.08-320,884.94

Finding the Fourth Proportional to 853,359.29, 1,280,088.08 and 320,884.94

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Solution

The fourth proportional to 853,359.29, 1,280,088.08 and 320,884.94 is: 481,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,359.29 : 1,280,088.08 = 320,884.94 : x
  2. Step 2: Convert to fraction form
    853,359.29/1,280,088.08 = 320,884.94/x
  3. Step 3: Cross multiply
    853,359.29x = 1,280,088.08 × 320,884.94
  4. Step 4: Simplify right side
    853,359.29x = 410,760,978,740.65
  5. Step 5: Solve for x
    x = 410,760,978,740.65/853,359.29
  6. Step 6: Final answer
    x = 481,345.88

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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.