Finding the Fourth Proportional to 2,220,478.70, 3,064,116.47 and 1,290,104.04
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Solution
The fourth proportional to 2,220,478.70, 3,064,116.47 and 1,290,104.04 is: 1,780,259.83
Step by Step Solution
- Step 1: Write the proportion equation
2,220,478.70 : 3,064,116.47 = 1,290,104.04 : x - Step 2: Convert to fraction form
2,220,478.70/3,064,116.47 = 1,290,104.04/x - Step 3: Cross multiply
2,220,478.70x = 3,064,116.47 × 1,290,104.04 - Step 4: Simplify right side
2,220,478.70x = 3,953,029,036,977.54 - Step 5: Solve for x
x = 3,953,029,036,977.54/2,220,478.70 - Step 6: Final answer
x = 1,780,259.83
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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.