Finding the Fourth Proportional to 1,368,048.80, 1,887,907.76 and 747,856.68
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Solution
The fourth proportional to 1,368,048.80, 1,887,907.76 and 747,856.68 is: 1,032,042.45
Step by Step Solution
- Step 1: Write the proportion equation
1,368,048.80 : 1,887,907.76 = 747,856.68 : x - Step 2: Convert to fraction form
1,368,048.80/1,887,907.76 = 747,856.68/x - Step 3: Cross multiply
1,368,048.80x = 1,887,907.76 × 747,856.68 - Step 4: Simplify right side
1,368,048.80x = 1,411,884,431,409.48 - Step 5: Solve for x
x = 1,411,884,431,409.48/1,368,048.80 - Step 6: Final answer
x = 1,032,042.45
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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.