Finding the Fourth Proportional to 1,192,014.40, 1,785,688.80 and 717,289.60
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Solution
The fourth proportional to 1,192,014.40, 1,785,688.80 and 717,289.60 is: 1,074,530.65
Step by Step Solution
- Step 1: Write the proportion equation
1,192,014.40 : 1,785,688.80 = 717,289.60 : x - Step 2: Convert to fraction form
1,192,014.40/1,785,688.80 = 717,289.60/x - Step 3: Cross multiply
1,192,014.40x = 1,785,688.80 × 717,289.60 - Step 4: Simplify right side
1,192,014.40x = 1,280,856,005,076.48 - Step 5: Solve for x
x = 1,280,856,005,076.48/1,192,014.40 - Step 6: Final answer
x = 1,074,530.65
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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.