Finding the Fourth Proportional to 1,283,396.88, 1,926,987.66 and 715,886.76
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Solution
The fourth proportional to 1,283,396.88, 1,926,987.66 and 715,886.76 is: 1,074,885.70
Step by Step Solution
- Step 1: Write the proportion equation
1,283,396.88 : 1,926,987.66 = 715,886.76 : x - Step 2: Convert to fraction form
1,283,396.88/1,926,987.66 = 715,886.76/x - Step 3: Cross multiply
1,283,396.88x = 1,926,987.66 × 715,886.76 - Step 4: Simplify right side
1,283,396.88x = 1,379,504,952,477.38 - Step 5: Solve for x
x = 1,379,504,952,477.38/1,283,396.88 - Step 6: Final answer
x = 1,074,885.70
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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.