Finding the Fourth Proportional to 1,212,420.18, 1,817,643.99 and 453,836.75
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Solution
The fourth proportional to 1,212,420.18, 1,817,643.99 and 453,836.75 is: 680,385.94
Step by Step Solution
- Step 1: Write the proportion equation
1,212,420.18 : 1,817,643.99 = 453,836.75 : x - Step 2: Convert to fraction form
1,212,420.18/1,817,643.99 = 453,836.75/x - Step 3: Cross multiply
1,212,420.18x = 1,817,643.99 × 453,836.75 - Step 4: Simplify right side
1,212,420.18x = 824,913,641,078.63 - Step 5: Solve for x
x = 824,913,641,078.63/1,212,420.18 - Step 6: Final answer
x = 680,385.94
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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.