Finding the Fourth Proportional to 708,169.70, 977,243.64 and 402,245.14
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Solution
The fourth proportional to 708,169.70, 977,243.64 and 402,245.14 is: 555,080.94
Step by Step Solution
- Step 1: Write the proportion equation
708,169.70 : 977,243.64 = 402,245.14 : x - Step 2: Convert to fraction form
708,169.70/977,243.64 = 402,245.14/x - Step 3: Cross multiply
708,169.70x = 977,243.64 × 402,245.14 - Step 4: Simplify right side
708,169.70x = 393,091,504,785.91 - Step 5: Solve for x
x = 393,091,504,785.91/708,169.70 - Step 6: Final answer
x = 555,080.94
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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.