Finding the Fourth Proportional to 938,478.60, 1,295,107.11 and 508,765.50
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Solution
The fourth proportional to 938,478.60, 1,295,107.11 and 508,765.50 is: 702,099.99
Step by Step Solution
- Step 1: Write the proportion equation
938,478.60 : 1,295,107.11 = 508,765.50 : x - Step 2: Convert to fraction form
938,478.60/1,295,107.11 = 508,765.50/x - Step 3: Cross multiply
938,478.60x = 1,295,107.11 × 508,765.50 - Step 4: Simplify right side
938,478.60x = 658,905,816,372.71 - Step 5: Solve for x
x = 658,905,816,372.71/938,478.60 - Step 6: Final answer
x = 702,099.99
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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.