Finding the Fourth Proportional to 1,190,023.99, 1,642,188.26 and 646,148.02
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Solution
The fourth proportional to 1,190,023.99, 1,642,188.26 and 646,148.02 is: 891,659.92
Step by Step Solution
- Step 1: Write the proportion equation
1,190,023.99 : 1,642,188.26 = 646,148.02 : x - Step 2: Convert to fraction form
1,190,023.99/1,642,188.26 = 646,148.02/x - Step 3: Cross multiply
1,190,023.99x = 1,642,188.26 × 646,148.02 - Step 4: Simplify right side
1,190,023.99x = 1,061,096,692,666.25 - Step 5: Solve for x
x = 1,061,096,692,666.25/1,190,023.99 - Step 6: Final answer
x = 891,659.92
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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.