Finding the Fourth Proportional to 1,747,305.60, 2,620,958.40 and 1,390,387.20
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Solution
The fourth proportional to 1,747,305.60, 2,620,958.40 and 1,390,387.20 is: 2,085,580.80
Step by Step Solution
- Step 1: Write the proportion equation
1,747,305.60 : 2,620,958.40 = 1,390,387.20 : x - Step 2: Convert to fraction form
1,747,305.60/2,620,958.40 = 1,390,387.20/x - Step 3: Cross multiply
1,747,305.60x = 2,620,958.40 × 1,390,387.20 - Step 4: Simplify right side
1,747,305.60x = 3,644,147,011,092.48 - Step 5: Solve for x
x = 3,644,147,011,092.48/1,747,305.60 - Step 6: Final answer
x = 2,085,580.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.