Finding the Fourth Proportional to 1,620,071.70, 2,235,655.64 and 894,903.81
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Solution
The fourth proportional to 1,620,071.70, 2,235,655.64 and 894,903.81 is: 1,234,943.33
Step by Step Solution
- Step 1: Write the proportion equation
1,620,071.70 : 2,235,655.64 = 894,903.81 : x - Step 2: Convert to fraction form
1,620,071.70/2,235,655.64 = 894,903.81/x - Step 3: Cross multiply
1,620,071.70x = 2,235,655.64 × 894,903.81 - Step 4: Simplify right side
1,620,071.70x = 2,000,696,745,609.47 - Step 5: Solve for x
x = 2,000,696,745,609.47/1,620,071.70 - Step 6: Final answer
x = 1,234,943.33
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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.