Finding the Fourth Proportional to 406,807.12, 561,392.28 and 227,959.12
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Solution
The fourth proportional to 406,807.12, 561,392.28 and 227,959.12 is: 314,582.72
Step by Step Solution
- Step 1: Write the proportion equation
406,807.12 : 561,392.28 = 227,959.12 : x - Step 2: Convert to fraction form
406,807.12/561,392.28 = 227,959.12/x - Step 3: Cross multiply
406,807.12x = 561,392.28 × 227,959.12 - Step 4: Simplify right side
406,807.12x = 127,974,490,123.59 - Step 5: Solve for x
x = 127,974,490,123.59/406,807.12 - Step 6: Final answer
x = 314,582.72
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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.