Finding the Fourth Proportional to 1,678,618.20, 2,316,420.68 and 953,463.66
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Solution
The fourth proportional to 1,678,618.20, 2,316,420.68 and 953,463.66 is: 1,315,738.71
Step by Step Solution
- Step 1: Write the proportion equation
1,678,618.20 : 2,316,420.68 = 953,463.66 : x - Step 2: Convert to fraction form
1,678,618.20/2,316,420.68 = 953,463.66/x - Step 3: Cross multiply
1,678,618.20x = 2,316,420.68 × 953,463.66 - Step 4: Simplify right side
1,678,618.20x = 2,208,622,939,652.49 - Step 5: Solve for x
x = 2,208,622,939,652.49/1,678,618.20 - Step 6: Final answer
x = 1,315,738.71
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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.