Finding the Fourth Proportional to 916,071.60, 1,372,706.08 and 489,668.08
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Solution
The fourth proportional to 916,071.60, 1,372,706.08 and 489,668.08 is: 733,753.07
Step by Step Solution
- Step 1: Write the proportion equation
916,071.60 : 1,372,706.08 = 489,668.08 : x - Step 2: Convert to fraction form
916,071.60/1,372,706.08 = 489,668.08/x - Step 3: Cross multiply
916,071.60x = 1,372,706.08 × 489,668.08 - Step 4: Simplify right side
916,071.60x = 672,170,350,597.93 - Step 5: Solve for x
x = 672,170,350,597.93/916,071.60 - Step 6: Final answer
x = 733,753.07
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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.