Finding the Fourth Proportional to 1,115,724.96, 1,539,923.76 and 662,928.48
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Solution
The fourth proportional to 1,115,724.96, 1,539,923.76 and 662,928.48 is: 914,973.99
Step by Step Solution
- Step 1: Write the proportion equation
1,115,724.96 : 1,539,923.76 = 662,928.48 : x - Step 2: Convert to fraction form
1,115,724.96/1,539,923.76 = 662,928.48/x - Step 3: Cross multiply
1,115,724.96x = 1,539,923.76 × 662,928.48 - Step 4: Simplify right side
1,115,724.96x = 1,020,859,317,532.68 - Step 5: Solve for x
x = 1,020,859,317,532.68/1,115,724.96 - Step 6: Final answer
x = 914,973.99
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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.