Finding the Fourth Proportional to 1,272,221.51, 1,755,643.16 and 699,261.53
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Solution
The fourth proportional to 1,272,221.51, 1,755,643.16 and 699,261.53 is: 964,968.53
Step by Step Solution
- Step 1: Write the proportion equation
1,272,221.51 : 1,755,643.16 = 699,261.53 : x - Step 2: Convert to fraction form
1,272,221.51/1,755,643.16 = 699,261.53/x - Step 3: Cross multiply
1,272,221.51x = 1,755,643.16 × 699,261.53 - Step 4: Simplify right side
1,272,221.51x = 1,227,653,709,921.11 - Step 5: Solve for x
x = 1,227,653,709,921.11/1,272,221.51 - Step 6: Final answer
x = 964,968.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.