Home / 853,979.12-1,280,922.48-433,244.06

Finding the Fourth Proportional to 853,979.12, 1,280,922.48 and 433,244.06

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Solution

The fourth proportional to 853,979.12, 1,280,922.48 and 433,244.06 is: 649,842.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,979.12 : 1,280,922.48 = 433,244.06 : x
  2. Step 2: Convert to fraction form
    853,979.12/1,280,922.48 = 433,244.06/x
  3. Step 3: Cross multiply
    853,979.12x = 1,280,922.48 × 433,244.06
  4. Step 4: Simplify right side
    853,979.12x = 554,952,055,780.47
  5. Step 5: Solve for x
    x = 554,952,055,780.47/853,979.12
  6. Step 6: Final answer
    x = 649,842.65

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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.