Finding the Fourth Proportional to 2,154,014.88, 2,972,489.35 and 1,173,984.94
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Solution
The fourth proportional to 2,154,014.88, 2,972,489.35 and 1,173,984.94 is: 1,620,071.32
Step by Step Solution
- Step 1: Write the proportion equation
2,154,014.88 : 2,972,489.35 = 1,173,984.94 : x - Step 2: Convert to fraction form
2,154,014.88/2,972,489.35 = 1,173,984.94/x - Step 3: Cross multiply
2,154,014.88x = 2,972,489.35 × 1,173,984.94 - Step 4: Simplify right side
2,154,014.88x = 3,489,657,734,192.26 - Step 5: Solve for x
x = 3,489,657,734,192.26/2,154,014.88 - Step 6: Final answer
x = 1,620,071.32
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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.