Finding the Fourth Proportional to 1,645,263.40, 2,270,447.30 and 920,102.76
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Solution
The fourth proportional to 1,645,263.40, 2,270,447.30 and 920,102.76 is: 1,269,732.75
Step by Step Solution
- Step 1: Write the proportion equation
1,645,263.40 : 2,270,447.30 = 920,102.76 : x - Step 2: Convert to fraction form
1,645,263.40/2,270,447.30 = 920,102.76/x - Step 3: Cross multiply
1,645,263.40x = 2,270,447.30 × 920,102.76 - Step 4: Simplify right side
1,645,263.40x = 2,089,044,827,164.55 - Step 5: Solve for x
x = 2,089,044,827,164.55/1,645,263.40 - Step 6: Final answer
x = 1,269,732.75
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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.