Finding the Fourth Proportional to 528,069.70, 792,104.55 and 318,117.70
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Solution
The fourth proportional to 528,069.70, 792,104.55 and 318,117.70 is: 477,176.55
Step by Step Solution
- Step 1: Write the proportion equation
528,069.70 : 792,104.55 = 318,117.70 : x - Step 2: Convert to fraction form
528,069.70/792,104.55 = 318,117.70/x - Step 3: Cross multiply
528,069.70x = 792,104.55 × 318,117.70 - Step 4: Simplify right side
528,069.70x = 251,982,477,605.54 - Step 5: Solve for x
x = 251,982,477,605.54/528,069.70 - Step 6: Final answer
x = 477,176.55
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1.5x scale
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.