Finding the Fourth Proportional to 707,705.80, 976,714.68 and 421,226.80
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Solution
The fourth proportional to 707,705.80, 976,714.68 and 421,226.80 is: 581,341.00
Step by Step Solution
- Step 1: Write the proportion equation
707,705.80 : 976,714.68 = 421,226.80 : x - Step 2: Convert to fraction form
707,705.80/976,714.68 = 421,226.80/x - Step 3: Cross multiply
707,705.80x = 976,714.68 × 421,226.80 - Step 4: Simplify right side
707,705.80x = 411,418,399,169.42 - Step 5: Solve for x
x = 411,418,399,169.42/707,705.80 - Step 6: Final answer
x = 581,341.00
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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.