Finding the Fourth Proportional to 1,515,427.11, 2,091,285.14 and 836,358.75
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Solution
The fourth proportional to 1,515,427.11, 2,091,285.14 and 836,358.75 is: 1,154,172.71
Step by Step Solution
- Step 1: Write the proportion equation
1,515,427.11 : 2,091,285.14 = 836,358.75 : x - Step 2: Convert to fraction form
1,515,427.11/2,091,285.14 = 836,358.75/x - Step 3: Cross multiply
1,515,427.11x = 2,091,285.14 × 836,358.75 - Step 4: Simplify right side
1,515,427.11x = 1,749,064,621,402.18 - Step 5: Solve for x
x = 1,749,064,621,402.18/1,515,427.11 - Step 6: Final answer
x = 1,154,172.71
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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.