Finding the Fourth Proportional to 620,178.71, 855,602.38 and 358,361.02
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Solution
The fourth proportional to 620,178.71, 855,602.38 and 358,361.02 is: 494,397.07
Step by Step Solution
- Step 1: Write the proportion equation
620,178.71 : 855,602.38 = 358,361.02 : x - Step 2: Convert to fraction form
620,178.71/855,602.38 = 358,361.02/x - Step 3: Cross multiply
620,178.71x = 855,602.38 × 358,361.02 - Step 4: Simplify right side
620,178.71x = 306,614,535,541.41 - Step 5: Solve for x
x = 306,614,535,541.41/620,178.71 - Step 6: Final answer
x = 494,397.07
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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.