Finding the Fourth Proportional to 726,291.80, 1,089,437.70 and 353,043.80
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Solution
The fourth proportional to 726,291.80, 1,089,437.70 and 353,043.80 is: 529,565.70
Step by Step Solution
- Step 1: Write the proportion equation
726,291.80 : 1,089,437.70 = 353,043.80 : x - Step 2: Convert to fraction form
726,291.80/1,089,437.70 = 353,043.80/x - Step 3: Cross multiply
726,291.80x = 1,089,437.70 × 353,043.80 - Step 4: Simplify right side
726,291.80x = 384,619,225,471.26 - Step 5: Solve for x
x = 384,619,225,471.26/726,291.80 - Step 6: Final answer
x = 529,565.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.