Finding the Fourth Proportional to 460,811.02, 691,215.99 and 128,387.02
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Solution
The fourth proportional to 460,811.02, 691,215.99 and 128,387.02 is: 192,580.38
Step by Step Solution
- Step 1: Write the proportion equation
460,811.02 : 691,215.99 = 128,387.02 : x - Step 2: Convert to fraction form
460,811.02/691,215.99 = 128,387.02/x - Step 3: Cross multiply
460,811.02x = 691,215.99 × 128,387.02 - Step 4: Simplify right side
460,811.02x = 88,743,161,132.45 - Step 5: Solve for x
x = 88,743,161,132.45/460,811.02 - Step 6: Final answer
x = 192,580.38
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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.