Finding the Fourth Proportional to 1,009,942.19, 1,392,459.57 and 646,768.97
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Solution
The fourth proportional to 1,009,942.19, 1,392,459.57 and 646,768.97 is: 891,733.85
Step by Step Solution
- Step 1: Write the proportion equation
1,009,942.19 : 1,392,459.57 = 646,768.97 : x - Step 2: Convert to fraction form
1,009,942.19/1,392,459.57 = 646,768.97/x - Step 3: Cross multiply
1,009,942.19x = 1,392,459.57 × 646,768.97 - Step 4: Simplify right side
1,009,942.19x = 900,599,634,893.25 - Step 5: Solve for x
x = 900,599,634,893.25/1,009,942.19 - Step 6: Final answer
x = 891,733.85
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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.