Finding the Fourth Proportional to 493,163.10, 740,619.45 and 381,115.80
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Solution
The fourth proportional to 493,163.10, 740,619.45 and 381,115.80 is: 572,349.74
Step by Step Solution
- Step 1: Write the proportion equation
493,163.10 : 740,619.45 = 381,115.80 : x - Step 2: Convert to fraction form
493,163.10/740,619.45 = 381,115.80/x - Step 3: Cross multiply
493,163.10x = 740,619.45 × 381,115.80 - Step 4: Simplify right side
493,163.10x = 282,261,774,182.31 - Step 5: Solve for x
x = 282,261,774,182.31/493,163.10 - Step 6: Final answer
x = 572,349.74
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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.