Finding the Fourth Proportional to 1,214,145.63, 1,675,634.99 and 907,691.31
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Solution
The fourth proportional to 1,214,145.63, 1,675,634.99 and 907,691.31 is: 1,252,699.25
Step by Step Solution
- Step 1: Write the proportion equation
1,214,145.63 : 1,675,634.99 = 907,691.31 : x - Step 2: Convert to fraction form
1,214,145.63/1,675,634.99 = 907,691.31/x - Step 3: Cross multiply
1,214,145.63x = 1,675,634.99 × 907,691.31 - Step 4: Simplify right side
1,214,145.63x = 1,520,959,314,616.48 - Step 5: Solve for x
x = 1,520,959,314,616.48/1,214,145.63 - Step 6: Final answer
x = 1,252,699.25
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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.