Finding the Fourth Proportional to 972,318.45, 1,341,638.99 and 542,597.55
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Solution
The fourth proportional to 972,318.45, 1,341,638.99 and 542,597.55 is: 748,695.07
Step by Step Solution
- Step 1: Write the proportion equation
972,318.45 : 1,341,638.99 = 542,597.55 : x - Step 2: Convert to fraction form
972,318.45/1,341,638.99 = 542,597.55/x - Step 3: Cross multiply
972,318.45x = 1,341,638.99 × 542,597.55 - Step 4: Simplify right side
972,318.45x = 727,970,026,245.49 - Step 5: Solve for x
x = 727,970,026,245.49/972,318.45 - Step 6: Final answer
x = 748,695.07
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1.5x scale
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.