Finding the Fourth Proportional to 831,225.60, 1,247,023.36 and 387,751.68
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Solution
The fourth proportional to 831,225.60, 1,247,023.36 and 387,751.68 is: 581,713.80
Step by Step Solution
- Step 1: Write the proportion equation
831,225.60 : 1,247,023.36 = 387,751.68 : x - Step 2: Convert to fraction form
831,225.60/1,247,023.36 = 387,751.68/x - Step 3: Cross multiply
831,225.60x = 1,247,023.36 × 387,751.68 - Step 4: Simplify right side
831,225.60x = 483,535,402,839.25 - Step 5: Solve for x
x = 483,535,402,839.25/831,225.60 - Step 6: Final answer
x = 581,713.80
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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.