Finding the Fourth Proportional to 2,108,519.68, 2,909,743.91 and 1,141,646.98
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Solution
The fourth proportional to 2,108,519.68, 2,909,743.91 and 1,141,646.98 is: 1,575,465.66
Step by Step Solution
- Step 1: Write the proportion equation
2,108,519.68 : 2,909,743.91 = 1,141,646.98 : x - Step 2: Convert to fraction form
2,108,519.68/2,909,743.91 = 1,141,646.98/x - Step 3: Cross multiply
2,108,519.68x = 2,909,743.91 × 1,141,646.98 - Step 4: Simplify right side
2,108,519.68x = 3,321,900,341,716.66 - Step 5: Solve for x
x = 3,321,900,341,716.66/2,108,519.68 - Step 6: Final answer
x = 1,575,465.66
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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.