Finding the Fourth Proportional to 1,442,735.28, 1,991,124.36 and 830,909.84
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Solution
The fourth proportional to 1,442,735.28, 1,991,124.36 and 830,909.84 is: 1,146,741.78
Step by Step Solution
- Step 1: Write the proportion equation
1,442,735.28 : 1,991,124.36 = 830,909.84 : x - Step 2: Convert to fraction form
1,442,735.28/1,991,124.36 = 830,909.84/x - Step 3: Cross multiply
1,442,735.28x = 1,991,124.36 × 830,909.84 - Step 4: Simplify right side
1,442,735.28x = 1,654,444,823,387.70 - Step 5: Solve for x
x = 1,654,444,823,387.70/1,442,735.28 - Step 6: Final answer
x = 1,146,741.78
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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.