Finding the Fourth Proportional to 989,842.72, 1,365,986.68 and 537,133.76
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Solution
The fourth proportional to 989,842.72, 1,365,986.68 and 537,133.76 is: 741,246.61
Step by Step Solution
- Step 1: Write the proportion equation
989,842.72 : 1,365,986.68 = 537,133.76 : x - Step 2: Convert to fraction form
989,842.72/1,365,986.68 = 537,133.76/x - Step 3: Cross multiply
989,842.72x = 1,365,986.68 × 537,133.76 - Step 4: Simplify right side
989,842.72x = 733,717,561,538.32 - Step 5: Solve for x
x = 733,717,561,538.32/989,842.72 - Step 6: Final answer
x = 741,246.61
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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.