Finding the Fourth Proportional to 1,151,478.40, 1,726,699.20 and 520,067.20
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Solution
The fourth proportional to 1,151,478.40, 1,726,699.20 and 520,067.20 is: 779,866.66
Step by Step Solution
- Step 1: Write the proportion equation
1,151,478.40 : 1,726,699.20 = 520,067.20 : x - Step 2: Convert to fraction form
1,151,478.40/1,726,699.20 = 520,067.20/x - Step 3: Cross multiply
1,151,478.40x = 1,726,699.20 × 520,067.20 - Step 4: Simplify right side
1,151,478.40x = 897,999,618,186.24 - Step 5: Solve for x
x = 897,999,618,186.24/1,151,478.40 - Step 6: Final answer
x = 779,866.66
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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.