Finding the Fourth Proportional to 1,272,415.64, 1,755,939.26 and 699,492.71
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Solution
The fourth proportional to 1,272,415.64, 1,755,939.26 and 699,492.71 is: 965,303.07
Step by Step Solution
- Step 1: Write the proportion equation
1,272,415.64 : 1,755,939.26 = 699,492.71 : x - Step 2: Convert to fraction form
1,272,415.64/1,755,939.26 = 699,492.71/x - Step 3: Cross multiply
1,272,415.64x = 1,755,939.26 × 699,492.71 - Step 4: Simplify right side
1,272,415.64x = 1,228,266,717,711.37 - Step 5: Solve for x
x = 1,228,266,717,711.37/1,272,415.64 - Step 6: Final answer
x = 965,303.07
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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.