Finding the Fourth Proportional to 817,103.97, 1,225,852.79 and 256,138.47
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Solution
The fourth proportional to 817,103.97, 1,225,852.79 and 256,138.47 is: 384,269.41
Step by Step Solution
- Step 1: Write the proportion equation
817,103.97 : 1,225,852.79 = 256,138.47 : x - Step 2: Convert to fraction form
817,103.97/1,225,852.79 = 256,138.47/x - Step 3: Cross multiply
817,103.97x = 1,225,852.79 × 256,138.47 - Step 4: Simplify right side
817,103.97x = 313,988,058,075.83 - Step 5: Solve for x
x = 313,988,058,075.83/817,103.97 - Step 6: Final answer
x = 384,269.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.