Finding the Fourth Proportional to 1,085,927.99, 1,627,886.48 and 402,434.33
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Solution
The fourth proportional to 1,085,927.99, 1,627,886.48 and 402,434.33 is: 603,278.86
Step by Step Solution
- Step 1: Write the proportion equation
1,085,927.99 : 1,627,886.48 = 402,434.33 : x - Step 2: Convert to fraction form
1,085,927.99/1,627,886.48 = 402,434.33/x - Step 3: Cross multiply
1,085,927.99x = 1,627,886.48 × 402,434.33 - Step 4: Simplify right side
1,085,927.99x = 655,117,394,743.25 - Step 5: Solve for x
x = 655,117,394,743.25/1,085,927.99 - Step 6: Final answer
x = 603,278.86
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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.