Finding the Fourth Proportional to 1,173,174.81, 1,618,981.24 and 636,630.81
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Solution
The fourth proportional to 1,173,174.81, 1,618,981.24 and 636,630.81 is: 878,550.52
Step by Step Solution
- Step 1: Write the proportion equation
1,173,174.81 : 1,618,981.24 = 636,630.81 : x - Step 2: Convert to fraction form
1,173,174.81/1,618,981.24 = 636,630.81/x - Step 3: Cross multiply
1,173,174.81x = 1,618,981.24 × 636,630.81 - Step 4: Simplify right side
1,173,174.81x = 1,030,693,343,835.03 - Step 5: Solve for x
x = 1,030,693,343,835.03/1,173,174.81 - Step 6: Final answer
x = 878,550.52
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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.