Finding the Fourth Proportional to 1,260,684.18, 1,739,740.55 and 687,720.26
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Solution
The fourth proportional to 1,260,684.18, 1,739,740.55 and 687,720.26 is: 949,051.99
Step by Step Solution
- Step 1: Write the proportion equation
1,260,684.18 : 1,739,740.55 = 687,720.26 : x - Step 2: Convert to fraction form
1,260,684.18/1,739,740.55 = 687,720.26/x - Step 3: Cross multiply
1,260,684.18x = 1,739,740.55 × 687,720.26 - Step 4: Simplify right side
1,260,684.18x = 1,196,454,824,289.29 - Step 5: Solve for x
x = 1,196,454,824,289.29/1,260,684.18 - Step 6: Final answer
x = 949,051.99
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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.