Finding the Fourth Proportional to 1,534,742.40, 2,299,003.20 and 869,116.80
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Solution
The fourth proportional to 1,534,742.40, 2,299,003.20 and 869,116.80 is: 1,301,913.80
Step by Step Solution
- Step 1: Write the proportion equation
1,534,742.40 : 2,299,003.20 = 869,116.80 : x - Step 2: Convert to fraction form
1,534,742.40/2,299,003.20 = 869,116.80/x - Step 3: Cross multiply
1,534,742.40x = 2,299,003.20 × 869,116.80 - Step 4: Simplify right side
1,534,742.40x = 1,998,102,304,373.76 - Step 5: Solve for x
x = 1,998,102,304,373.76/1,534,742.40 - Step 6: Final answer
x = 1,301,913.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.