Finding the Fourth Proportional to 1,143,919.36, 1,578,748.68 and 660,483.68
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Solution
The fourth proportional to 1,143,919.36, 1,578,748.68 and 660,483.68 is: 911,548.29
Step by Step Solution
- Step 1: Write the proportion equation
1,143,919.36 : 1,578,748.68 = 660,483.68 : x - Step 2: Convert to fraction form
1,143,919.36/1,578,748.68 = 660,483.68/x - Step 3: Cross multiply
1,143,919.36x = 1,578,748.68 × 660,483.68 - Step 4: Simplify right side
1,143,919.36x = 1,042,737,737,961.54 - Step 5: Solve for x
x = 1,042,737,737,961.54/1,143,919.36 - Step 6: Final answer
x = 911,548.29
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1.5x scale
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.