Finding the Fourth Proportional to 1,638,256.95, 2,260,805.09 and 913,150.65
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Solution
The fourth proportional to 1,638,256.95, 2,260,805.09 and 913,150.65 is: 1,260,153.75
Step by Step Solution
- Step 1: Write the proportion equation
1,638,256.95 : 2,260,805.09 = 913,150.65 : x - Step 2: Convert to fraction form
1,638,256.95/2,260,805.09 = 913,150.65/x - Step 3: Cross multiply
1,638,256.95x = 2,260,805.09 × 913,150.65 - Step 4: Simplify right side
1,638,256.95x = 2,064,455,637,456.81 - Step 5: Solve for x
x = 2,064,455,637,456.81/1,638,256.95 - Step 6: Final answer
x = 1,260,153.75
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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.