Finding the Fourth Proportional to 886,805.96, 1,223,403.46 and 542,658.42
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Solution
The fourth proportional to 886,805.96, 1,223,403.46 and 542,658.42 is: 748,630.72
Step by Step Solution
- Step 1: Write the proportion equation
886,805.96 : 1,223,403.46 = 542,658.42 : x - Step 2: Convert to fraction form
886,805.96/1,223,403.46 = 542,658.42/x - Step 3: Cross multiply
886,805.96x = 1,223,403.46 × 542,658.42 - Step 4: Simplify right side
886,805.96x = 663,890,188,626.13 - Step 5: Solve for x
x = 663,890,188,626.13/886,805.96 - Step 6: Final answer
x = 748,630.72
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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.