Finding the Fourth Proportional to 628,605.36, 867,496.68 and 342,135.84
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Solution
The fourth proportional to 628,605.36, 867,496.68 and 342,135.84 is: 472,159.04
Step by Step Solution
- Step 1: Write the proportion equation
628,605.36 : 867,496.68 = 342,135.84 : x - Step 2: Convert to fraction form
628,605.36/867,496.68 = 342,135.84/x - Step 3: Cross multiply
628,605.36x = 867,496.68 × 342,135.84 - Step 4: Simplify right side
628,605.36x = 296,801,705,309.01 - Step 5: Solve for x
x = 296,801,705,309.01/628,605.36 - Step 6: Final answer
x = 472,159.04
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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.