Home / 476,979.40-658,293.78-307,705.96

Finding the Fourth Proportional to 476,979.40, 658,293.78 and 307,705.96

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Solution

The fourth proportional to 476,979.40, 658,293.78 and 307,705.96 is: 424,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,979.40 : 658,293.78 = 307,705.96 : x
  2. Step 2: Convert to fraction form
    476,979.40/658,293.78 = 307,705.96/x
  3. Step 3: Cross multiply
    476,979.40x = 658,293.78 × 307,705.96
  4. Step 4: Simplify right side
    476,979.40x = 202,560,919,536.93
  5. Step 5: Solve for x
    x = 202,560,919,536.93/476,979.40
  6. Step 6: Final answer
    x = 424,674.36

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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.