Finding the Fourth Proportional to 2,980,602.34, 4,112,996.70 and 1,691,442.70
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Solution
The fourth proportional to 2,980,602.34, 4,112,996.70 and 1,691,442.70 is: 2,334,057.83
Step by Step Solution
- Step 1: Write the proportion equation
2,980,602.34 : 4,112,996.70 = 1,691,442.70 : x - Step 2: Convert to fraction form
2,980,602.34/4,112,996.70 = 1,691,442.70/x - Step 3: Cross multiply
2,980,602.34x = 4,112,996.70 × 1,691,442.70 - Step 4: Simplify right side
2,980,602.34x = 6,956,898,243,339.09 - Step 5: Solve for x
x = 6,956,898,243,339.09/2,980,602.34 - Step 6: Final answer
x = 2,334,057.83
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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.