Finding the Fourth Proportional to 714,239.24, 985,601.61 and 391,970.09
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Solution
The fourth proportional to 714,239.24, 985,601.61 and 391,970.09 is: 540,892.09
Step by Step Solution
- Step 1: Write the proportion equation
714,239.24 : 985,601.61 = 391,970.09 : x - Step 2: Convert to fraction form
714,239.24/985,601.61 = 391,970.09/x - Step 3: Cross multiply
714,239.24x = 985,601.61 × 391,970.09 - Step 4: Simplify right side
714,239.24x = 386,326,355,709.74 - Step 5: Solve for x
x = 386,326,355,709.74/714,239.24 - Step 6: Final answer
x = 540,892.09
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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.