Finding the Fourth Proportional to 1,087,349.94, 1,630,692 and 518,431.05
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Solution
The fourth proportional to 1,087,349.94, 1,630,692 and 518,431.05 is: 777,487.85
Step by Step Solution
- Step 1: Write the proportion equation
1,087,349.94 : 1,630,692 = 518,431.05 : x - Step 2: Convert to fraction form
1,087,349.94/1,630,692 = 518,431.05/x - Step 3: Cross multiply
1,087,349.94x = 1,630,692 × 518,431.05 - Step 4: Simplify right side
1,087,349.94x = 845,401,365,786.60 - Step 5: Solve for x
x = 845,401,365,786.60/1,087,349.94 - Step 6: Final answer
x = 777,487.85
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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.