Finding the Fourth Proportional to 875,809.70, 1,313,714.55 and 840,817.70
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Solution
The fourth proportional to 875,809.70, 1,313,714.55 and 840,817.70 is: 1,261,226.55
Step by Step Solution
- Step 1: Write the proportion equation
875,809.70 : 1,313,714.55 = 840,817.70 : x - Step 2: Convert to fraction form
875,809.70/1,313,714.55 = 840,817.70/x - Step 3: Cross multiply
875,809.70x = 1,313,714.55 × 840,817.70 - Step 4: Simplify right side
875,809.70x = 1,104,594,446,387.53 - Step 5: Solve for x
x = 1,104,594,446,387.53/875,809.70 - Step 6: Final answer
x = 1,261,226.55
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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.