Finding the Fourth Proportional to 1,646,828.23, 2,272,622.59 and 921,675.91
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Solution
The fourth proportional to 1,646,828.23, 2,272,622.59 and 921,675.91 is: 1,271,912.55
Step by Step Solution
- Step 1: Write the proportion equation
1,646,828.23 : 2,272,622.59 = 921,675.91 : x - Step 2: Convert to fraction form
1,646,828.23/2,272,622.59 = 921,675.91/x - Step 3: Cross multiply
1,646,828.23x = 2,272,622.59 × 921,675.91 - Step 4: Simplify right side
1,646,828.23x = 2,094,621,493,724.81 - Step 5: Solve for x
x = 2,094,621,493,724.81/1,646,828.23 - Step 6: Final answer
x = 1,271,912.55
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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.