Finding the Fourth Proportional to 1,670,763.92, 2,305,656.50 and 906,817.55
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Solution
The fourth proportional to 1,670,763.92, 2,305,656.50 and 906,817.55 is: 1,251,409.46
Step by Step Solution
- Step 1: Write the proportion equation
1,670,763.92 : 2,305,656.50 = 906,817.55 : x - Step 2: Convert to fraction form
1,670,763.92/2,305,656.50 = 906,817.55/x - Step 3: Cross multiply
1,670,763.92x = 2,305,656.50 × 906,817.55 - Step 4: Simplify right side
1,670,763.92x = 2,090,809,762,409.21 - Step 5: Solve for x
x = 2,090,809,762,409.21/1,670,763.92 - Step 6: Final answer
x = 1,251,409.46
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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.