Finding the Fourth Proportional to 687,537.98, 948,788.12 and 381,596.42
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Solution
The fourth proportional to 687,537.98, 948,788.12 and 381,596.42 is: 526,595.12
Step by Step Solution
- Step 1: Write the proportion equation
687,537.98 : 948,788.12 = 381,596.42 : x - Step 2: Convert to fraction form
687,537.98/948,788.12 = 381,596.42/x - Step 3: Cross multiply
687,537.98x = 948,788.12 × 381,596.42 - Step 4: Simplify right side
687,537.98x = 362,054,143,278.61 - Step 5: Solve for x
x = 362,054,143,278.61/687,537.98 - Step 6: Final answer
x = 526,595.12
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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.