Finding the Fourth Proportional to 845,467.93, 1,165,420.42 and 640,699.12
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Solution
The fourth proportional to 845,467.93, 1,165,420.42 and 640,699.12 is: 883,160.45
Step by Step Solution
- Step 1: Write the proportion equation
845,467.93 : 1,165,420.42 = 640,699.12 : x - Step 2: Convert to fraction form
845,467.93/1,165,420.42 = 640,699.12/x - Step 3: Cross multiply
845,467.93x = 1,165,420.42 × 640,699.12 - Step 4: Simplify right side
845,467.93x = 746,683,840,982.99 - Step 5: Solve for x
x = 746,683,840,982.99/845,467.93 - Step 6: Final answer
x = 883,160.45
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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.