Finding the Fourth Proportional to 1,185,129.79, 1,778,690.18 and 511,720.09
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Solution
The fourth proportional to 1,185,129.79, 1,778,690.18 and 511,720.09 is: 768,009.97
Step by Step Solution
- Step 1: Write the proportion equation
1,185,129.79 : 1,778,690.18 = 511,720.09 : x - Step 2: Convert to fraction form
1,185,129.79/1,778,690.18 = 511,720.09/x - Step 3: Cross multiply
1,185,129.79x = 1,778,690.18 × 511,720.09 - Step 4: Simplify right side
1,185,129.79x = 910,191,498,991.72 - Step 5: Solve for x
x = 910,191,498,991.72/1,185,129.79 - Step 6: Final answer
x = 768,009.97
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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.