Finding the Fourth Proportional to 902,772.36, 1,354,745.76 and 390,937.44
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Solution
The fourth proportional to 902,772.36, 1,354,745.76 and 390,937.44 is: 586,660.45
Step by Step Solution
- Step 1: Write the proportion equation
902,772.36 : 1,354,745.76 = 390,937.44 : x - Step 2: Convert to fraction form
902,772.36/1,354,745.76 = 390,937.44/x - Step 3: Cross multiply
902,772.36x = 1,354,745.76 × 390,937.44 - Step 4: Simplify right side
902,772.36x = 529,620,839,265.25 - Step 5: Solve for x
x = 529,620,839,265.25/902,772.36 - Step 6: Final answer
x = 586,660.45
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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.