Finding the Fourth Proportional to 1,380,400.08, 1,904,929.44 and 776,788.08
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Solution
The fourth proportional to 1,380,400.08, 1,904,929.44 and 776,788.08 is: 1,071,954.79
Step by Step Solution
- Step 1: Write the proportion equation
1,380,400.08 : 1,904,929.44 = 776,788.08 : x - Step 2: Convert to fraction form
1,380,400.08/1,904,929.44 = 776,788.08/x - Step 3: Cross multiply
1,380,400.08x = 1,904,929.44 × 776,788.08 - Step 4: Simplify right side
1,380,400.08x = 1,479,726,482,233.08 - Step 5: Solve for x
x = 1,479,726,482,233.08/1,380,400.08 - Step 6: Final answer
x = 1,071,954.79
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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.