Finding the Fourth Proportional to 2,064,760.29, 2,850,405.26 and 1,290,821.09
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Solution
The fourth proportional to 2,064,760.29, 2,850,405.26 and 1,290,821.09 is: 1,781,980.81
Step by Step Solution
- Step 1: Write the proportion equation
2,064,760.29 : 2,850,405.26 = 1,290,821.09 : x - Step 2: Convert to fraction form
2,064,760.29/2,850,405.26 = 1,290,821.09/x - Step 3: Cross multiply
2,064,760.29x = 2,850,405.26 × 1,290,821.09 - Step 4: Simplify right side
2,064,760.29x = 3,679,363,203,948.80 - Step 5: Solve for x
x = 3,679,363,203,948.80/2,064,760.29 - Step 6: Final answer
x = 1,781,980.81
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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.