Finding the Fourth Proportional to 687,297.24, 948,424.61 and 381,354.23
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Solution
The fourth proportional to 687,297.24, 948,424.61 and 381,354.23 is: 526,243.54
Step by Step Solution
- Step 1: Write the proportion equation
687,297.24 : 948,424.61 = 381,354.23 : x - Step 2: Convert to fraction form
687,297.24/948,424.61 = 381,354.23/x - Step 3: Cross multiply
687,297.24x = 948,424.61 × 381,354.23 - Step 4: Simplify right side
687,297.24x = 361,685,732,117.48 - Step 5: Solve for x
x = 361,685,732,117.48/687,297.24 - Step 6: Final answer
x = 526,243.54
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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.