Finding the Fourth Proportional to 1,605,102.78, 2,215,027.70 and 879,937.32
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Solution
The fourth proportional to 1,605,102.78, 2,215,027.70 and 879,937.32 is: 1,214,305.75
Step by Step Solution
- Step 1: Write the proportion equation
1,605,102.78 : 2,215,027.70 = 879,937.32 : x - Step 2: Convert to fraction form
1,605,102.78/2,215,027.70 = 879,937.32/x - Step 3: Cross multiply
1,605,102.78x = 2,215,027.70 × 879,937.32 - Step 4: Simplify right side
1,605,102.78x = 1,949,085,538,063.76 - Step 5: Solve for x
x = 1,949,085,538,063.76/1,605,102.78 - Step 6: Final answer
x = 1,214,305.75
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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.