Finding the Fourth Proportional to 990,430.94, 1,486,494.79 and 982,975.70
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Solution
The fourth proportional to 990,430.94, 1,486,494.79 and 982,975.70 is: 1,475,305.54
Step by Step Solution
- Step 1: Write the proportion equation
990,430.94 : 1,486,494.79 = 982,975.70 : x - Step 2: Convert to fraction form
990,430.94/1,486,494.79 = 982,975.70/x - Step 3: Cross multiply
990,430.94x = 1,486,494.79 × 982,975.70 - Step 4: Simplify right side
990,430.94x = 1,461,188,258,005.40 - Step 5: Solve for x
x = 1,461,188,258,005.40/990,430.94 - Step 6: Final answer
x = 1,475,305.54
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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.