Finding the Fourth Proportional to 528,457.40, 792,683.94 and 191,419.18
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Solution
The fourth proportional to 528,457.40, 792,683.94 and 191,419.18 is: 287,127.99
Step by Step Solution
- Step 1: Write the proportion equation
528,457.40 : 792,683.94 = 191,419.18 : x - Step 2: Convert to fraction form
528,457.40/792,683.94 = 191,419.18/x - Step 3: Cross multiply
528,457.40x = 792,683.94 × 191,419.18 - Step 4: Simplify right side
528,457.40x = 151,734,909,793.97 - Step 5: Solve for x
x = 151,734,909,793.97/528,457.40 - Step 6: Final answer
x = 287,127.99
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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.