Finding the Fourth Proportional to 561,785.63, 775,264.16 and 307,136.81
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Solution
The fourth proportional to 561,785.63, 775,264.16 and 307,136.81 is: 423,848.80
Step by Step Solution
- Step 1: Write the proportion equation
561,785.63 : 775,264.16 = 307,136.81 : x - Step 2: Convert to fraction form
561,785.63/775,264.16 = 307,136.81/x - Step 3: Cross multiply
561,785.63x = 775,264.16 × 307,136.81 - Step 4: Simplify right side
561,785.63x = 238,112,163,715.73 - Step 5: Solve for x
x = 238,112,163,715.73/561,785.63 - Step 6: Final answer
x = 423,848.80
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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.