Finding the Fourth Proportional to 1,915,038.13, 2,642,751.98 and 1,055,612.74
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Solution
The fourth proportional to 1,915,038.13, 2,642,751.98 and 1,055,612.74 is: 1,456,745.23
Step by Step Solution
- Step 1: Write the proportion equation
1,915,038.13 : 2,642,751.98 = 1,055,612.74 : x - Step 2: Convert to fraction form
1,915,038.13/2,642,751.98 = 1,055,612.74/x - Step 3: Cross multiply
1,915,038.13x = 2,642,751.98 × 1,055,612.74 - Step 4: Simplify right side
1,915,038.13x = 2,789,722,658,748.23 - Step 5: Solve for x
x = 2,789,722,658,748.23/1,915,038.13 - Step 6: Final answer
x = 1,456,745.23
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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.