Home / 972,979.89-1,458,979.84-324,326.42

Finding the Fourth Proportional to 972,979.89, 1,458,979.84 and 324,326.42

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Solution

The fourth proportional to 972,979.89, 1,458,979.84 and 324,326.42 is: 486,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,979.89 : 1,458,979.84 = 324,326.42 : x
  2. Step 2: Convert to fraction form
    972,979.89/1,458,979.84 = 324,326.42/x
  3. Step 3: Cross multiply
    972,979.89x = 1,458,979.84 × 324,326.42
  4. Step 4: Simplify right side
    972,979.89x = 473,185,708,359.37
  5. Step 5: Solve for x
    x = 473,185,708,359.37/972,979.89
  6. Step 6: Final answer
    x = 486,326.30

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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.