Finding the Fourth Proportional to 674,984.40, 1,011,975.48 and 408,681.60
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Solution
The fourth proportional to 674,984.40, 1,011,975.48 and 408,681.60 is: 612,718.99
Step by Step Solution
- Step 1: Write the proportion equation
674,984.40 : 1,011,975.48 = 408,681.60 : x - Step 2: Convert to fraction form
674,984.40/1,011,975.48 = 408,681.60/x - Step 3: Cross multiply
674,984.40x = 1,011,975.48 × 408,681.60 - Step 4: Simplify right side
674,984.40x = 413,575,758,327.17 - Step 5: Solve for x
x = 413,575,758,327.17/674,984.40 - Step 6: Final answer
x = 612,718.99
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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.