Finding the Fourth Proportional to 1,408,245.10, 1,943,378.76 and 763,665.12
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Solution
The fourth proportional to 1,408,245.10, 1,943,378.76 and 763,665.12 is: 1,053,858.15
Step by Step Solution
- Step 1: Write the proportion equation
1,408,245.10 : 1,943,378.76 = 763,665.12 : x - Step 2: Convert to fraction form
1,408,245.10/1,943,378.76 = 763,665.12/x - Step 3: Cross multiply
1,408,245.10x = 1,943,378.76 × 763,665.12 - Step 4: Simplify right side
1,408,245.10x = 1,484,090,575,846.92 - Step 5: Solve for x
x = 1,484,090,575,846.92/1,408,245.10 - Step 6: Final answer
x = 1,053,858.15
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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.