Finding the Fourth Proportional to 1,297,442.40, 1,790,434 and 716,653.95
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Solution
The fourth proportional to 1,297,442.40, 1,790,434 and 716,653.95 is: 988,962.28
Step by Step Solution
- Step 1: Write the proportion equation
1,297,442.40 : 1,790,434 = 716,653.95 : x - Step 2: Convert to fraction form
1,297,442.40/1,790,434 = 716,653.95/x - Step 3: Cross multiply
1,297,442.40x = 1,790,434 × 716,653.95 - Step 4: Simplify right side
1,297,442.40x = 1,283,121,598,314.30 - Step 5: Solve for x
x = 1,283,121,598,314.30/1,297,442.40 - Step 6: Final answer
x = 988,962.28
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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.