Finding the Fourth Proportional to 1,645,238.58, 2,270,544.93 and 920,153.76
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Solution
The fourth proportional to 1,645,238.58, 2,270,544.93 and 920,153.76 is: 1,269,876.89
Step by Step Solution
- Step 1: Write the proportion equation
1,645,238.58 : 2,270,544.93 = 920,153.76 : x - Step 2: Convert to fraction form
1,645,238.58/2,270,544.93 = 920,153.76/x - Step 3: Cross multiply
1,645,238.58x = 2,270,544.93 × 920,153.76 - Step 4: Simplify right side
1,645,238.58x = 2,089,250,454,588.44 - Step 5: Solve for x
x = 2,089,250,454,588.44/1,645,238.58 - Step 6: Final answer
x = 1,269,876.89
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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.