Finding the Fourth Proportional to 712,683.12, 983,470.50 and 426,361.08
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Solution
The fourth proportional to 712,683.12, 983,470.50 and 426,361.08 is: 588,359.02
Step by Step Solution
- Step 1: Write the proportion equation
712,683.12 : 983,470.50 = 426,361.08 : x - Step 2: Convert to fraction form
712,683.12/983,470.50 = 426,361.08/x - Step 3: Cross multiply
712,683.12x = 983,470.50 × 426,361.08 - Step 4: Simplify right side
712,683.12x = 419,313,544,528.14 - Step 5: Solve for x
x = 419,313,544,528.14/712,683.12 - Step 6: Final answer
x = 588,359.02
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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.