Finding the Fourth Proportional to 831,431.96, 1,147,688.12 and 544,970.50
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Solution
The fourth proportional to 831,431.96, 1,147,688.12 and 544,970.50 is: 752,263.80
Step by Step Solution
- Step 1: Write the proportion equation
831,431.96 : 1,147,688.12 = 544,970.50 : x - Step 2: Convert to fraction form
831,431.96/1,147,688.12 = 544,970.50/x - Step 3: Cross multiply
831,431.96x = 1,147,688.12 × 544,970.50 - Step 4: Simplify right side
831,431.96x = 625,456,168,600.46 - Step 5: Solve for x
x = 625,456,168,600.46/831,431.96 - Step 6: Final answer
x = 752,263.80
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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.