Finding the Fourth Proportional to 2,820,489.12, 3,892,252.80 and 1,531,303.68
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Solution
The fourth proportional to 2,820,489.12, 3,892,252.80 and 1,531,303.68 is: 2,113,187.03
Step by Step Solution
- Step 1: Write the proportion equation
2,820,489.12 : 3,892,252.80 = 1,531,303.68 : x - Step 2: Convert to fraction form
2,820,489.12/3,892,252.80 = 1,531,303.68/x - Step 3: Cross multiply
2,820,489.12x = 3,892,252.80 × 1,531,303.68 - Step 4: Simplify right side
2,820,489.12x = 5,960,221,036,130.30 - Step 5: Solve for x
x = 5,960,221,036,130.30/2,820,489.12 - Step 6: Final answer
x = 2,113,187.03
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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.