Finding the Fourth Proportional to 1,272,552.84, 1,755,537.74 and 1,127,505.53
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Solution
The fourth proportional to 1,272,552.84, 1,755,537.74 and 1,127,505.53 is: 1,555,439.15
Step by Step Solution
- Step 1: Write the proportion equation
1,272,552.84 : 1,755,537.74 = 1,127,505.53 : x - Step 2: Convert to fraction form
1,272,552.84/1,755,537.74 = 1,127,505.53/x - Step 3: Cross multiply
1,272,552.84x = 1,755,537.74 × 1,127,505.53 - Step 4: Simplify right side
1,272,552.84x = 1,979,378,512,953.16 - Step 5: Solve for x
x = 1,979,378,512,953.16/1,272,552.84 - Step 6: Final answer
x = 1,555,439.15
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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.