Finding the Fourth Proportional to 1,008,276.70, 1,512,415.05 and 928,560.55
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Solution
The fourth proportional to 1,008,276.70, 1,512,415.05 and 928,560.55 is: 1,392,840.83
Step by Step Solution
- Step 1: Write the proportion equation
1,008,276.70 : 1,512,415.05 = 928,560.55 : x - Step 2: Convert to fraction form
1,008,276.70/1,512,415.05 = 928,560.55/x - Step 3: Cross multiply
1,008,276.70x = 1,512,415.05 × 928,560.55 - Step 4: Simplify right side
1,008,276.70x = 1,404,368,950,656.28 - Step 5: Solve for x
x = 1,404,368,950,656.28/1,008,276.70 - Step 6: Final answer
x = 1,392,840.83
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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.