Finding the Fourth Proportional to 628,603.44, 867,470.16 and 342,123.48
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Solution
The fourth proportional to 628,603.44, 867,470.16 and 342,123.48 is: 472,128.99
Step by Step Solution
- Step 1: Write the proportion equation
628,603.44 : 867,470.16 = 342,123.48 : x - Step 2: Convert to fraction form
628,603.44/867,470.16 = 342,123.48/x - Step 3: Cross multiply
628,603.44x = 867,470.16 × 342,123.48 - Step 4: Simplify right side
628,603.44x = 296,781,909,935.36 - Step 5: Solve for x
x = 296,781,909,935.36/628,603.44 - Step 6: Final answer
x = 472,128.99
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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.