Finding the Fourth Proportional to 2,861,511.12, 3,948,873.39 and 1,572,347.52
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Solution
The fourth proportional to 2,861,511.12, 3,948,873.39 and 1,572,347.52 is: 2,169,833.01
Step by Step Solution
- Step 1: Write the proportion equation
2,861,511.12 : 3,948,873.39 = 1,572,347.52 : x - Step 2: Convert to fraction form
2,861,511.12/3,948,873.39 = 1,572,347.52/x - Step 3: Cross multiply
2,861,511.12x = 3,948,873.39 × 1,572,347.52 - Step 4: Simplify right side
2,861,511.12x = 6,209,001,281,560.49 - Step 5: Solve for x
x = 6,209,001,281,560.49/2,861,511.12 - Step 6: Final answer
x = 2,169,833.01
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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.