Finding the Fourth Proportional to 857,420.47, 1,183,155 and 494,961.08
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Solution
The fourth proportional to 857,420.47, 1,183,155 and 494,961.08 is: 682,997.08
Step by Step Solution
- Step 1: Write the proportion equation
857,420.47 : 1,183,155 = 494,961.08 : x - Step 2: Convert to fraction form
857,420.47/1,183,155 = 494,961.08/x - Step 3: Cross multiply
857,420.47x = 1,183,155 × 494,961.08 - Step 4: Simplify right side
857,420.47x = 585,615,676,607.40 - Step 5: Solve for x
x = 585,615,676,607.40/857,420.47 - Step 6: Final answer
x = 682,997.08
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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.