Finding the Fourth Proportional to 1,247,434.44, 1,721,066.57 and 763,495.08
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Solution
The fourth proportional to 1,247,434.44, 1,721,066.57 and 763,495.08 is: 1,053,382.70
Step by Step Solution
- Step 1: Write the proportion equation
1,247,434.44 : 1,721,066.57 = 763,495.08 : x - Step 2: Convert to fraction form
1,247,434.44/1,721,066.57 = 763,495.08/x - Step 3: Cross multiply
1,247,434.44x = 1,721,066.57 × 763,495.08 - Step 4: Simplify right side
1,247,434.44x = 1,314,025,854,730 - Step 5: Solve for x
x = 1,314,025,854,730/1,247,434.44 - Step 6: Final answer
x = 1,053,382.70
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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.