Finding the Fourth Proportional to 628,269.48, 867,312.99 and 386,759.07
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Solution
The fourth proportional to 628,269.48, 867,312.99 and 386,759.07 is: 533,912.88
Step by Step Solution
- Step 1: Write the proportion equation
628,269.48 : 867,312.99 = 386,759.07 : x - Step 2: Convert to fraction form
628,269.48/867,312.99 = 386,759.07/x - Step 3: Cross multiply
628,269.48x = 867,312.99 × 386,759.07 - Step 4: Simplify right side
628,269.48x = 335,441,165,411.32 - Step 5: Solve for x
x = 335,441,165,411.32/628,269.48 - Step 6: Final answer
x = 533,912.88
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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.