Finding the Fourth Proportional to 1,053,678.44, 1,578,921.14 and 697,416.14
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Solution
The fourth proportional to 1,053,678.44, 1,578,921.14 and 697,416.14 is: 1,045,067.49
Step by Step Solution
- Step 1: Write the proportion equation
1,053,678.44 : 1,578,921.14 = 697,416.14 : x - Step 2: Convert to fraction form
1,053,678.44/1,578,921.14 = 697,416.14/x - Step 3: Cross multiply
1,053,678.44x = 1,578,921.14 × 697,416.14 - Step 4: Simplify right side
1,053,678.44x = 1,101,165,086,823.20 - Step 5: Solve for x
x = 1,101,165,086,823.20/1,053,678.44 - Step 6: Final answer
x = 1,045,067.49
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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.