Finding the Fourth Proportional to 679,595.70, 937,737.09 and 393,142.44
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Solution
The fourth proportional to 679,595.70, 937,737.09 and 393,142.44 is: 542,475.84
Step by Step Solution
- Step 1: Write the proportion equation
679,595.70 : 937,737.09 = 393,142.44 : x - Step 2: Convert to fraction form
679,595.70/937,737.09 = 393,142.44/x - Step 3: Cross multiply
679,595.70x = 937,737.09 × 393,142.44 - Step 4: Simplify right side
679,595.70x = 368,664,247,641.10 - Step 5: Solve for x
x = 368,664,247,641.10/679,595.70 - Step 6: Final answer
x = 542,475.84
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1.5x scale
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.