Finding the Fourth Proportional to 917,707.24, 1,266,452.58 and 515,313.64
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Solution
The fourth proportional to 917,707.24, 1,266,452.58 and 515,313.64 is: 711,142.14
Step by Step Solution
- Step 1: Write the proportion equation
917,707.24 : 1,266,452.58 = 515,313.64 : x - Step 2: Convert to fraction form
917,707.24/1,266,452.58 = 515,313.64/x - Step 3: Cross multiply
917,707.24x = 1,266,452.58 × 515,313.64 - Step 4: Simplify right side
917,707.24x = 652,620,288,887.19 - Step 5: Solve for x
x = 652,620,288,887.19/917,707.24 - Step 6: Final answer
x = 711,142.14
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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.