Finding the Fourth Proportional to 1,354,442.74, 1,868,752.80 and 1,067,070.94
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Solution
The fourth proportional to 1,354,442.74, 1,868,752.80 and 1,067,070.94 is: 1,472,259.95
Step by Step Solution
- Step 1: Write the proportion equation
1,354,442.74 : 1,868,752.80 = 1,067,070.94 : x - Step 2: Convert to fraction form
1,354,442.74/1,868,752.80 = 1,067,070.94/x - Step 3: Cross multiply
1,354,442.74x = 1,868,752.80 × 1,067,070.94 - Step 4: Simplify right side
1,354,442.74x = 1,994,091,806,923.63 - Step 5: Solve for x
x = 1,994,091,806,923.63/1,354,442.74 - Step 6: Final answer
x = 1,472,259.95
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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.