Finding the Fourth Proportional to 1,590,511.76, 2,194,966.92 and 911,579.60
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Solution
The fourth proportional to 1,590,511.76, 2,194,966.92 and 911,579.60 is: 1,258,014.63
Step by Step Solution
- Step 1: Write the proportion equation
1,590,511.76 : 2,194,966.92 = 911,579.60 : x - Step 2: Convert to fraction form
1,590,511.76/2,194,966.92 = 911,579.60/x - Step 3: Cross multiply
1,590,511.76x = 2,194,966.92 × 911,579.60 - Step 4: Simplify right side
1,590,511.76x = 2,000,887,066,946.83 - Step 5: Solve for x
x = 2,000,887,066,946.83/1,590,511.76 - Step 6: Final answer
x = 1,258,014.63
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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.