Finding the Fourth Proportional to 1,173,835.28, 1,759,176.12 and 640,557.20
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Solution
The fourth proportional to 1,173,835.28, 1,759,176.12 and 640,557.20 is: 959,975.35
Step by Step Solution
- Step 1: Write the proportion equation
1,173,835.28 : 1,759,176.12 = 640,557.20 : x - Step 2: Convert to fraction form
1,173,835.28/1,759,176.12 = 640,557.20/x - Step 3: Cross multiply
1,173,835.28x = 1,759,176.12 × 640,557.20 - Step 4: Simplify right side
1,173,835.28x = 1,126,852,929,734.06 - Step 5: Solve for x
x = 1,126,852,929,734.06/1,173,835.28 - Step 6: Final answer
x = 959,975.35
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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.