Finding the Fourth Proportional to 708,149.03, 977,245.70 and 385,859.07
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Solution
The fourth proportional to 708,149.03, 977,245.70 and 385,859.07 is: 532,485.54
Step by Step Solution
- Step 1: Write the proportion equation
708,149.03 : 977,245.70 = 385,859.07 : x - Step 2: Convert to fraction form
708,149.03/977,245.70 = 385,859.07/x - Step 3: Cross multiply
708,149.03x = 977,245.70 × 385,859.07 - Step 4: Simplify right side
708,149.03x = 377,079,115,034.20 - Step 5: Solve for x
x = 377,079,115,034.20/708,149.03 - Step 6: Final answer
x = 532,485.54
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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.