Finding the Fourth Proportional to 658,957.98, 909,362.79 and 357,151.98
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Solution
The fourth proportional to 658,957.98, 909,362.79 and 357,151.98 is: 492,870.15
Step by Step Solution
- Step 1: Write the proportion equation
658,957.98 : 909,362.79 = 357,151.98 : x - Step 2: Convert to fraction form
658,957.98/909,362.79 = 357,151.98/x - Step 3: Cross multiply
658,957.98x = 909,362.79 × 357,151.98 - Step 4: Simplify right side
658,957.98x = 324,780,720,986.82 - Step 5: Solve for x
x = 324,780,720,986.82/658,957.98 - Step 6: Final answer
x = 492,870.15
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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.