Finding the Fourth Proportional to 879,787.74, 1,320,614.81 and 779,238.53
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Solution
The fourth proportional to 879,787.74, 1,320,614.81 and 779,238.53 is: 1,169,684.33
Step by Step Solution
- Step 1: Write the proportion equation
879,787.74 : 1,320,614.81 = 779,238.53 : x - Step 2: Convert to fraction form
879,787.74/1,320,614.81 = 779,238.53/x - Step 3: Cross multiply
879,787.74x = 1,320,614.81 × 779,238.53 - Step 4: Simplify right side
879,787.74x = 1,029,073,935,663.51 - Step 5: Solve for x
x = 1,029,073,935,663.51/879,787.74 - Step 6: Final answer
x = 1,169,684.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.