Finding the Fourth Proportional to 2,125,155.78, 2,932,716.06 and 1,207,386.51
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Solution
The fourth proportional to 2,125,155.78, 2,932,716.06 and 1,207,386.51 is: 1,666,194.00
Step by Step Solution
- Step 1: Write the proportion equation
2,125,155.78 : 2,932,716.06 = 1,207,386.51 : x - Step 2: Convert to fraction form
2,125,155.78/2,932,716.06 = 1,207,386.51/x - Step 3: Cross multiply
2,125,155.78x = 2,932,716.06 × 1,207,386.51 - Step 4: Simplify right side
2,125,155.78x = 3,540,921,808,504.35 - Step 5: Solve for x
x = 3,540,921,808,504.35/2,125,155.78 - Step 6: Final answer
x = 1,666,194.00
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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.