Finding the Fourth Proportional to 1,330,298.30, 1,993,258.65 and 768,352.70
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Solution
The fourth proportional to 1,330,298.30, 1,993,258.65 and 768,352.70 is: 1,151,264.84
Step by Step Solution
- Step 1: Write the proportion equation
1,330,298.30 : 1,993,258.65 = 768,352.70 : x - Step 2: Convert to fraction form
1,330,298.30/1,993,258.65 = 768,352.70/x - Step 3: Cross multiply
1,330,298.30x = 1,993,258.65 × 768,352.70 - Step 4: Simplify right side
1,330,298.30x = 1,531,525,665,525.85 - Step 5: Solve for x
x = 1,531,525,665,525.85/1,330,298.30 - Step 6: Final answer
x = 1,151,264.84
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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.