Finding the Fourth Proportional to 1,271,245.40, 1,753,585.76 and 761,652.53
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Solution
The fourth proportional to 1,271,245.40, 1,753,585.76 and 761,652.53 is: 1,050,641.39
Step by Step Solution
- Step 1: Write the proportion equation
1,271,245.40 : 1,753,585.76 = 761,652.53 : x - Step 2: Convert to fraction form
1,271,245.40/1,753,585.76 = 761,652.53/x - Step 3: Cross multiply
1,271,245.40x = 1,753,585.76 × 761,652.53 - Step 4: Simplify right side
1,271,245.40x = 1,335,623,023,812.18 - Step 5: Solve for x
x = 1,335,623,023,812.18/1,271,245.40 - Step 6: Final answer
x = 1,050,641.39
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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.