Finding the Fourth Proportional to 716,361.74, 988,489.50 and 484,293.74
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Solution
The fourth proportional to 716,361.74, 988,489.50 and 484,293.74 is: 668,264.72
Step by Step Solution
- Step 1: Write the proportion equation
716,361.74 : 988,489.50 = 484,293.74 : x - Step 2: Convert to fraction form
716,361.74/988,489.50 = 484,293.74/x - Step 3: Cross multiply
716,361.74x = 988,489.50 × 484,293.74 - Step 4: Simplify right side
716,361.74x = 478,719,276,905.73 - Step 5: Solve for x
x = 478,719,276,905.73/716,361.74 - Step 6: Final answer
x = 668,264.72
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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.