Finding the Fourth Proportional to 2,138,170.97, 2,950,679.44 and 1,171,280.05
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Solution
The fourth proportional to 2,138,170.97, 2,950,679.44 and 1,171,280.05 is: 1,616,368.38
Step by Step Solution
- Step 1: Write the proportion equation
2,138,170.97 : 2,950,679.44 = 1,171,280.05 : x - Step 2: Convert to fraction form
2,138,170.97/2,950,679.44 = 1,171,280.05/x - Step 3: Cross multiply
2,138,170.97x = 2,950,679.44 × 1,171,280.05 - Step 4: Simplify right side
2,138,170.97x = 3,456,071,956,104.57 - Step 5: Solve for x
x = 3,456,071,956,104.57/2,138,170.97 - Step 6: Final answer
x = 1,616,368.38
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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.