Finding the Fourth Proportional to 1,321,318.08, 1,823,420.70 and 717,706.08
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Solution
The fourth proportional to 1,321,318.08, 1,823,420.70 and 717,706.08 is: 990,435.34
Step by Step Solution
- Step 1: Write the proportion equation
1,321,318.08 : 1,823,420.70 = 717,706.08 : x - Step 2: Convert to fraction form
1,321,318.08/1,823,420.70 = 717,706.08/x - Step 3: Cross multiply
1,321,318.08x = 1,823,420.70 × 717,706.08 - Step 4: Simplify right side
1,321,318.08x = 1,308,680,122,787.86 - Step 5: Solve for x
x = 1,308,680,122,787.86/1,321,318.08 - Step 6: Final answer
x = 990,435.34
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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.