Finding the Fourth Proportional to 1,519,420.21, 2,278,117.91 and 836,628.59
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Solution
The fourth proportional to 1,519,420.21, 2,278,117.91 and 836,628.59 is: 1,254,385.44
Step by Step Solution
- Step 1: Write the proportion equation
1,519,420.21 : 2,278,117.91 = 836,628.59 : x - Step 2: Convert to fraction form
1,519,420.21/2,278,117.91 = 836,628.59/x - Step 3: Cross multiply
1,519,420.21x = 2,278,117.91 × 836,628.59 - Step 4: Simplify right side
1,519,420.21x = 1,905,938,581,082.17 - Step 5: Solve for x
x = 1,905,938,581,082.17/1,519,420.21 - Step 6: Final answer
x = 1,254,385.44
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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.