Home / 828,387.41-1,241,079.37-379,483.79

Finding the Fourth Proportional to 828,387.41, 1,241,079.37 and 379,483.79

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Solution

The fourth proportional to 828,387.41, 1,241,079.37 and 379,483.79 is: 568,537.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,387.41 : 1,241,079.37 = 379,483.79 : x
  2. Step 2: Convert to fraction form
    828,387.41/1,241,079.37 = 379,483.79/x
  3. Step 3: Cross multiply
    828,387.41x = 1,241,079.37 × 379,483.79
  4. Step 4: Simplify right side
    828,387.41x = 470,969,495,864.31
  5. Step 5: Solve for x
    x = 470,969,495,864.31/828,387.41
  6. Step 6: Final answer
    x = 568,537.73

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Double scale
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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.