Finding the Fourth Proportional to 1,369,963.19, 1,890,502.74 and 758,141.78
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Solution
The fourth proportional to 1,369,963.19, 1,890,502.74 and 758,141.78 is: 1,046,209.94
Step by Step Solution
- Step 1: Write the proportion equation
1,369,963.19 : 1,890,502.74 = 758,141.78 : x - Step 2: Convert to fraction form
1,369,963.19/1,890,502.74 = 758,141.78/x - Step 3: Cross multiply
1,369,963.19x = 1,890,502.74 × 758,141.78 - Step 4: Simplify right side
1,369,963.19x = 1,433,269,102,945.96 - Step 5: Solve for x
x = 1,433,269,102,945.96/1,369,963.19 - Step 6: Final answer
x = 1,046,209.94
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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.