Finding the Fourth Proportional to 989,821.62, 1,484,615.79 and 779,519.70
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Solution
The fourth proportional to 989,821.62, 1,484,615.79 and 779,519.70 is: 1,169,187.69
Step by Step Solution
- Step 1: Write the proportion equation
989,821.62 : 1,484,615.79 = 779,519.70 : x - Step 2: Convert to fraction form
989,821.62/1,484,615.79 = 779,519.70/x - Step 3: Cross multiply
989,821.62x = 1,484,615.79 × 779,519.70 - Step 4: Simplify right side
989,821.62x = 1,157,287,255,236.06 - Step 5: Solve for x
x = 1,157,287,255,236.06/989,821.62 - Step 6: Final answer
x = 1,169,187.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.