Home / 497,243.61-686,016.23-325,259.64

Finding the Fourth Proportional to 497,243.61, 686,016.23 and 325,259.64

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Solution

The fourth proportional to 497,243.61, 686,016.23 and 325,259.64 is: 448,740.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,243.61 : 686,016.23 = 325,259.64 : x
  2. Step 2: Convert to fraction form
    497,243.61/686,016.23 = 325,259.64/x
  3. Step 3: Cross multiply
    497,243.61x = 686,016.23 × 325,259.64
  4. Step 4: Simplify right side
    497,243.61x = 223,133,390,377.66
  5. Step 5: Solve for x
    x = 223,133,390,377.66/497,243.61
  6. Step 6: Final answer
    x = 448,740.59

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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.