Finding the Fourth Proportional to 1,638,219.69, 2,260,753.70 and 913,113.47
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Solution
The fourth proportional to 1,638,219.69, 2,260,753.70 and 913,113.47 is: 1,260,102.45
Step by Step Solution
- Step 1: Write the proportion equation
1,638,219.69 : 2,260,753.70 = 913,113.47 : x - Step 2: Convert to fraction form
1,638,219.69/2,260,753.70 = 913,113.47/x - Step 3: Cross multiply
1,638,219.69x = 2,260,753.70 × 913,113.47 - Step 4: Simplify right side
1,638,219.69x = 2,064,324,639,953.00 - Step 5: Solve for x
x = 2,064,324,639,953.00/1,638,219.69 - Step 6: Final answer
x = 1,260,102.45
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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.