Finding the Fourth Proportional to 989,720.75, 1,365,821.93 and 537,011.75
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Solution
The fourth proportional to 989,720.75, 1,365,821.93 and 537,011.75 is: 741,080.17
Step by Step Solution
- Step 1: Write the proportion equation
989,720.75 : 1,365,821.93 = 537,011.75 : x - Step 2: Convert to fraction form
989,720.75/1,365,821.93 = 537,011.75/x - Step 3: Cross multiply
989,720.75x = 1,365,821.93 × 537,011.75 - Step 4: Simplify right side
989,720.75x = 733,462,424,817.68 - Step 5: Solve for x
x = 733,462,424,817.68/989,720.75 - Step 6: Final answer
x = 741,080.17
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.