Finding the Fourth Proportional to 1,281,409.92, 1,768,335.84 and 708,474.24
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Solution
The fourth proportional to 1,281,409.92, 1,768,335.84 and 708,474.24 is: 977,689.01
Step by Step Solution
- Step 1: Write the proportion equation
1,281,409.92 : 1,768,335.84 = 708,474.24 : x - Step 2: Convert to fraction form
1,281,409.92/1,768,335.84 = 708,474.24/x - Step 3: Cross multiply
1,281,409.92x = 1,768,335.84 × 708,474.24 - Step 4: Simplify right side
1,281,409.92x = 1,252,820,390,308.76 - Step 5: Solve for x
x = 1,252,820,390,308.76/1,281,409.92 - Step 6: Final answer
x = 977,689.01
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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.