Finding the Fourth Proportional to 527,183.74, 727,484.79 and 312,343.66
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Solution
The fourth proportional to 527,183.74, 727,484.79 and 312,343.66 is: 431,017.20
Step by Step Solution
- Step 1: Write the proportion equation
527,183.74 : 727,484.79 = 312,343.66 : x - Step 2: Convert to fraction form
527,183.74/727,484.79 = 312,343.66/x - Step 3: Cross multiply
527,183.74x = 727,484.79 × 312,343.66 - Step 4: Simplify right side
527,183.74x = 227,225,261,902.93 - Step 5: Solve for x
x = 227,225,261,902.93/527,183.74 - Step 6: Final answer
x = 431,017.20
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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.