Finding the Fourth Proportional to 769,916.84, 1,062,508.74 and 430,399.40
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Solution
The fourth proportional to 769,916.84, 1,062,508.74 and 430,399.40 is: 593,964.31
Step by Step Solution
- Step 1: Write the proportion equation
769,916.84 : 1,062,508.74 = 430,399.40 : x - Step 2: Convert to fraction form
769,916.84/1,062,508.74 = 430,399.40/x - Step 3: Cross multiply
769,916.84x = 1,062,508.74 × 430,399.40 - Step 4: Simplify right side
769,916.84x = 457,303,124,190.76 - Step 5: Solve for x
x = 457,303,124,190.76/769,916.84 - Step 6: Final answer
x = 593,964.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.