Finding the Fourth Proportional to 369,640.70, 553,683.45 and 307,432.70
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Solution
The fourth proportional to 369,640.70, 553,683.45 and 307,432.70 is: 460,502.31
Step by Step Solution
- Step 1: Write the proportion equation
369,640.70 : 553,683.45 = 307,432.70 : x - Step 2: Convert to fraction form
369,640.70/553,683.45 = 307,432.70/x - Step 3: Cross multiply
369,640.70x = 553,683.45 × 307,432.70 - Step 4: Simplify right side
369,640.70x = 170,220,397,978.82 - Step 5: Solve for x
x = 170,220,397,978.82/369,640.70 - Step 6: Final answer
x = 460,502.31
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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.