Finding the Fourth Proportional to 868,589.10, 1,303,057.79 and 299,991.05
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Solution
The fourth proportional to 868,589.10, 1,303,057.79 and 299,991.05 is: 450,046.72
Step by Step Solution
- Step 1: Write the proportion equation
868,589.10 : 1,303,057.79 = 299,991.05 : x - Step 2: Convert to fraction form
868,589.10/1,303,057.79 = 299,991.05/x - Step 3: Cross multiply
868,589.10x = 1,303,057.79 × 299,991.05 - Step 4: Simplify right side
868,589.10x = 390,905,673,132.82 - Step 5: Solve for x
x = 390,905,673,132.82/868,589.10 - Step 6: Final answer
x = 450,046.72
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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.