Finding the Fourth Proportional to 2,126,589.68, 2,934,921.36 and 1,300,148.16
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Solution
The fourth proportional to 2,126,589.68, 2,934,921.36 and 1,300,148.16 is: 1,794,343.62
Step by Step Solution
- Step 1: Write the proportion equation
2,126,589.68 : 2,934,921.36 = 1,300,148.16 : x - Step 2: Convert to fraction form
2,126,589.68/2,934,921.36 = 1,300,148.16/x - Step 3: Cross multiply
2,126,589.68x = 2,934,921.36 × 1,300,148.16 - Step 4: Simplify right side
2,126,589.68x = 3,815,832,605,948.70 - Step 5: Solve for x
x = 3,815,832,605,948.70/2,126,589.68 - Step 6: Final answer
x = 1,794,343.62
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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.