Finding the Fourth Proportional to 1,646,789.09, 2,272,807.61 and 948,934.13
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Solution
The fourth proportional to 1,646,789.09, 2,272,807.61 and 948,934.13 is: 1,309,666.63
Step by Step Solution
- Step 1: Write the proportion equation
1,646,789.09 : 2,272,807.61 = 948,934.13 : x - Step 2: Convert to fraction form
1,646,789.09/2,272,807.61 = 948,934.13/x - Step 3: Cross multiply
1,646,789.09x = 2,272,807.61 × 948,934.13 - Step 4: Simplify right side
1,646,789.09x = 2,156,744,708,025.55 - Step 5: Solve for x
x = 2,156,744,708,025.55/1,646,789.09 - Step 6: Final answer
x = 1,309,666.63
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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.