Finding the Fourth Proportional to 1,896,448.32, 2,616,883.74 and 1,122,102.90
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Solution
The fourth proportional to 1,896,448.32, 2,616,883.74 and 1,122,102.90 is: 1,548,374.82
Step by Step Solution
- Step 1: Write the proportion equation
1,896,448.32 : 2,616,883.74 = 1,122,102.90 : x - Step 2: Convert to fraction form
1,896,448.32/2,616,883.74 = 1,122,102.90/x - Step 3: Cross multiply
1,896,448.32x = 2,616,883.74 × 1,122,102.90 - Step 4: Simplify right side
1,896,448.32x = 2,936,412,833,616.85 - Step 5: Solve for x
x = 2,936,412,833,616.85/1,896,448.32 - Step 6: Final answer
x = 1,548,374.82
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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.