Finding the Fourth Proportional to 572,013.99, 789,428.34 and 313,940.81
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Solution
The fourth proportional to 572,013.99, 789,428.34 and 313,940.81 is: 433,265.23
Step by Step Solution
- Step 1: Write the proportion equation
572,013.99 : 789,428.34 = 313,940.81 : x - Step 2: Convert to fraction form
572,013.99/789,428.34 = 313,940.81/x - Step 3: Cross multiply
572,013.99x = 789,428.34 × 313,940.81 - Step 4: Simplify right side
572,013.99x = 247,833,774,470.13 - Step 5: Solve for x
x = 247,833,774,470.13/572,013.99 - Step 6: Final answer
x = 433,265.23
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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.