Finding the Fourth Proportional to 1,245,152.70, 1,867,729.05 and 1,087,688.70
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Solution
The fourth proportional to 1,245,152.70, 1,867,729.05 and 1,087,688.70 is: 1,631,533.05
Step by Step Solution
- Step 1: Write the proportion equation
1,245,152.70 : 1,867,729.05 = 1,087,688.70 : x - Step 2: Convert to fraction form
1,245,152.70/1,867,729.05 = 1,087,688.70/x - Step 3: Cross multiply
1,245,152.70x = 1,867,729.05 × 1,087,688.70 - Step 4: Simplify right side
1,245,152.70x = 2,031,507,782,346.74 - Step 5: Solve for x
x = 2,031,507,782,346.74/1,245,152.70 - Step 6: Final answer
x = 1,631,533.05
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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.