Finding the Fourth Proportional to 1,909,126.80, 2,863,690.20 and 1,058,821.20
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Solution
The fourth proportional to 1,909,126.80, 2,863,690.20 and 1,058,821.20 is: 1,588,231.80
Step by Step Solution
- Step 1: Write the proportion equation
1,909,126.80 : 2,863,690.20 = 1,058,821.20 : x - Step 2: Convert to fraction form
1,909,126.80/2,863,690.20 = 1,058,821.20/x - Step 3: Cross multiply
1,909,126.80x = 2,863,690.20 × 1,058,821.20 - Step 4: Simplify right side
1,909,126.80x = 3,032,135,893,992.24 - Step 5: Solve for x
x = 3,032,135,893,992.24/1,909,126.80 - Step 6: Final answer
x = 1,588,231.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.