Finding the Fourth Proportional to 1,125,967.38, 1,553,448.96 and 642,184.62
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Solution
The fourth proportional to 1,125,967.38, 1,553,448.96 and 642,184.62 is: 885,994.61
Step by Step Solution
- Step 1: Write the proportion equation
1,125,967.38 : 1,553,448.96 = 642,184.62 : x - Step 2: Convert to fraction form
1,125,967.38/1,553,448.96 = 642,184.62/x - Step 3: Cross multiply
1,125,967.38x = 1,553,448.96 × 642,184.62 - Step 4: Simplify right side
1,125,967.38x = 997,601,030,067.00 - Step 5: Solve for x
x = 997,601,030,067.00/1,125,967.38 - Step 6: Final answer
x = 885,994.61
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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.