Finding the Fourth Proportional to 525,242.97, 724,805.55 and 310,403.02
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Solution
The fourth proportional to 525,242.97, 724,805.55 and 310,403.02 is: 428,338.59
Step by Step Solution
- Step 1: Write the proportion equation
525,242.97 : 724,805.55 = 310,403.02 : x - Step 2: Convert to fraction form
525,242.97/724,805.55 = 310,403.02/x - Step 3: Cross multiply
525,242.97x = 724,805.55 × 310,403.02 - Step 4: Simplify right side
525,242.97x = 224,981,831,632.76 - Step 5: Solve for x
x = 224,981,831,632.76/525,242.97 - Step 6: Final answer
x = 428,338.59
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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.