Finding the Fourth Proportional to 1,567,398.70, 2,351,098.05 and 385,446.70
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Solution
The fourth proportional to 1,567,398.70, 2,351,098.05 and 385,446.70 is: 578,170.05
Step by Step Solution
- Step 1: Write the proportion equation
1,567,398.70 : 2,351,098.05 = 385,446.70 : x - Step 2: Convert to fraction form
1,567,398.70/2,351,098.05 = 385,446.70/x - Step 3: Cross multiply
1,567,398.70x = 2,351,098.05 × 385,446.70 - Step 4: Simplify right side
1,567,398.70x = 906,222,984,748.94 - Step 5: Solve for x
x = 906,222,984,748.94/1,567,398.70 - Step 6: Final answer
x = 578,170.05
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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.