Finding the Fourth Proportional to 1,434,889.13, 1,980,236.84 and 790,309.08
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Solution
The fourth proportional to 1,434,889.13, 1,980,236.84 and 790,309.08 is: 1,090,676.01
Step by Step Solution
- Step 1: Write the proportion equation
1,434,889.13 : 1,980,236.84 = 790,309.08 : x - Step 2: Convert to fraction form
1,434,889.13/1,980,236.84 = 790,309.08/x - Step 3: Cross multiply
1,434,889.13x = 1,980,236.84 × 790,309.08 - Step 4: Simplify right side
1,434,889.13x = 1,564,999,151,250.96 - Step 5: Solve for x
x = 1,564,999,151,250.96/1,434,889.13 - Step 6: Final answer
x = 1,090,676.01
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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.