Finding the Fourth Proportional to 1,380,833.68, 1,906,139.64 and 928,387.12
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Solution
The fourth proportional to 1,380,833.68, 1,906,139.64 and 928,387.12 is: 1,281,570.34
Step by Step Solution
- Step 1: Write the proportion equation
1,380,833.68 : 1,906,139.64 = 928,387.12 : x - Step 2: Convert to fraction form
1,380,833.68/1,906,139.64 = 928,387.12/x - Step 3: Cross multiply
1,380,833.68x = 1,906,139.64 × 928,387.12 - Step 4: Simplify right side
1,380,833.68x = 1,769,635,490,697.44 - Step 5: Solve for x
x = 1,769,635,490,697.44/1,380,833.68 - Step 6: Final answer
x = 1,281,570.34
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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.