Finding the Fourth Proportional to 559,374.68, 771,942.36 and 317,662.28
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Solution
The fourth proportional to 559,374.68, 771,942.36 and 317,662.28 is: 438,376.96
Step by Step Solution
- Step 1: Write the proportion equation
559,374.68 : 771,942.36 = 317,662.28 : x - Step 2: Convert to fraction form
559,374.68/771,942.36 = 317,662.28/x - Step 3: Cross multiply
559,374.68x = 771,942.36 × 317,662.28 - Step 4: Simplify right side
559,374.68x = 245,216,970,106.18 - Step 5: Solve for x
x = 245,216,970,106.18/559,374.68 - Step 6: Final answer
x = 438,376.96
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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.