Finding the Fourth Proportional to 2,239,178.92, 3,090,099.06 and 1,220,583.64
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Solution
The fourth proportional to 2,239,178.92, 3,090,099.06 and 1,220,583.64 is: 1,684,422.95
Step by Step Solution
- Step 1: Write the proportion equation
2,239,178.92 : 3,090,099.06 = 1,220,583.64 : x - Step 2: Convert to fraction form
2,239,178.92/3,090,099.06 = 1,220,583.64/x - Step 3: Cross multiply
2,239,178.92x = 3,090,099.06 × 1,220,583.64 - Step 4: Simplify right side
2,239,178.92x = 3,771,724,358,615.38 - Step 5: Solve for x
x = 3,771,724,358,615.38/2,239,178.92 - Step 6: Final answer
x = 1,684,422.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.