Finding the Fourth Proportional to 2,634,902.76, 3,636,168.36 and 1,427,678.76
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Solution
The fourth proportional to 2,634,902.76, 3,636,168.36 and 1,427,678.76 is: 1,970,198.07
Step by Step Solution
- Step 1: Write the proportion equation
2,634,902.76 : 3,636,168.36 = 1,427,678.76 : x - Step 2: Convert to fraction form
2,634,902.76/3,636,168.36 = 1,427,678.76/x - Step 3: Cross multiply
2,634,902.76x = 3,636,168.36 × 1,427,678.76 - Step 4: Simplify right side
2,634,902.76x = 5,191,280,335,356.03 - Step 5: Solve for x
x = 5,191,280,335,356.03/2,634,902.76 - Step 6: Final answer
x = 1,970,198.07
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1.5x scale
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.