Finding the Fourth Proportional to 1,120,638.24, 1,546,484.40 and 611,351.28
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Solution
The fourth proportional to 1,120,638.24, 1,546,484.40 and 611,351.28 is: 843,666.75
Step by Step Solution
- Step 1: Write the proportion equation
1,120,638.24 : 1,546,484.40 = 611,351.28 : x - Step 2: Convert to fraction form
1,120,638.24/1,546,484.40 = 611,351.28/x - Step 3: Cross multiply
1,120,638.24x = 1,546,484.40 × 611,351.28 - Step 4: Simplify right side
1,120,638.24x = 945,445,217,440.03 - Step 5: Solve for x
x = 945,445,217,440.03/1,120,638.24 - Step 6: Final answer
x = 843,666.75
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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.