Finding the Fourth Proportional to 694,830.70, 1,042,246.05 and 648,174.70
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Solution
The fourth proportional to 694,830.70, 1,042,246.05 and 648,174.70 is: 972,262.05
Step by Step Solution
- Step 1: Write the proportion equation
694,830.70 : 1,042,246.05 = 648,174.70 : x - Step 2: Convert to fraction form
694,830.70/1,042,246.05 = 648,174.70/x - Step 3: Cross multiply
694,830.70x = 1,042,246.05 × 648,174.70 - Step 4: Simplify right side
694,830.70x = 675,557,520,784.94 - Step 5: Solve for x
x = 675,557,520,784.94/694,830.70 - Step 6: Final answer
x = 972,262.05
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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.