Finding the Fourth Proportional to 2,909,935.58, 4,015,712.20 and 1,686,950.06
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Solution
The fourth proportional to 2,909,935.58, 4,015,712.20 and 1,686,950.06 is: 2,327,991.72
Step by Step Solution
- Step 1: Write the proportion equation
2,909,935.58 : 4,015,712.20 = 1,686,950.06 : x - Step 2: Convert to fraction form
2,909,935.58/4,015,712.20 = 1,686,950.06/x - Step 3: Cross multiply
2,909,935.58x = 4,015,712.20 × 1,686,950.06 - Step 4: Simplify right side
2,909,935.58x = 6,774,305,916,654.17 - Step 5: Solve for x
x = 6,774,305,916,654.17/2,909,935.58 - Step 6: Final answer
x = 2,327,991.72
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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.