Finding the Fourth Proportional to 863,439.77, 1,295,315.50 and 390,347.93
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Solution
The fourth proportional to 863,439.77, 1,295,315.50 and 390,347.93 is: 585,592.35
Step by Step Solution
- Step 1: Write the proportion equation
863,439.77 : 1,295,315.50 = 390,347.93 : x - Step 2: Convert to fraction form
863,439.77/1,295,315.50 = 390,347.93/x - Step 3: Cross multiply
863,439.77x = 1,295,315.50 × 390,347.93 - Step 4: Simplify right side
863,439.77x = 505,623,722,170.18 - Step 5: Solve for x
x = 505,623,722,170.18/863,439.77 - Step 6: Final answer
x = 585,592.35
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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.