Finding the Fourth Proportional to 509,208.19, 702,719.03 and 279,779.80
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Solution
The fourth proportional to 509,208.19, 702,719.03 and 279,779.80 is: 386,102.56
Step by Step Solution
- Step 1: Write the proportion equation
509,208.19 : 702,719.03 = 279,779.80 : x - Step 2: Convert to fraction form
509,208.19/702,719.03 = 279,779.80/x - Step 3: Cross multiply
509,208.19x = 702,719.03 × 279,779.80 - Step 4: Simplify right side
509,208.19x = 196,606,584,757.10 - Step 5: Solve for x
x = 196,606,584,757.10/509,208.19 - Step 6: Final answer
x = 386,102.56
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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.