Finding the Fourth Proportional to 743,590.68, 1,026,071.85 and 421,231.74
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Solution
The fourth proportional to 743,590.68, 1,026,071.85 and 421,231.74 is: 581,252.62
Step by Step Solution
- Step 1: Write the proportion equation
743,590.68 : 1,026,071.85 = 421,231.74 : x - Step 2: Convert to fraction form
743,590.68/1,026,071.85 = 421,231.74/x - Step 3: Cross multiply
743,590.68x = 1,026,071.85 × 421,231.74 - Step 4: Simplify right side
743,590.68x = 432,214,030,740.52 - Step 5: Solve for x
x = 432,214,030,740.52/743,590.68 - Step 6: Final answer
x = 581,252.62
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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.