Finding the Fourth Proportional to 1,397,432.25, 1,927,910.16 and 785,444.65
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Solution
The fourth proportional to 1,397,432.25, 1,927,910.16 and 785,444.65 is: 1,083,606.53
Step by Step Solution
- Step 1: Write the proportion equation
1,397,432.25 : 1,927,910.16 = 785,444.65 : x - Step 2: Convert to fraction form
1,397,432.25/1,927,910.16 = 785,444.65/x - Step 3: Cross multiply
1,397,432.25x = 1,927,910.16 × 785,444.65 - Step 4: Simplify right side
1,397,432.25x = 1,514,266,716,032.87 - Step 5: Solve for x
x = 1,514,266,716,032.87/1,397,432.25 - Step 6: Final answer
x = 1,083,606.53
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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.