Finding the Fourth Proportional to 1,239,051.10, 1,709,998.73 and 722,971.26
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Solution
The fourth proportional to 1,239,051.10, 1,709,998.73 and 722,971.26 is: 997,763.48
Step by Step Solution
- Step 1: Write the proportion equation
1,239,051.10 : 1,709,998.73 = 722,971.26 : x - Step 2: Convert to fraction form
1,239,051.10/1,709,998.73 = 722,971.26/x - Step 3: Cross multiply
1,239,051.10x = 1,709,998.73 × 722,971.26 - Step 4: Simplify right side
1,239,051.10x = 1,236,279,940,332.16 - Step 5: Solve for x
x = 1,236,279,940,332.16/1,239,051.10 - Step 6: Final answer
x = 997,763.48
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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.