Finding the Fourth Proportional to 989,336, 1,365,283.68 and 559,606.88
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Solution
The fourth proportional to 989,336, 1,365,283.68 and 559,606.88 is: 772,257.49
Step by Step Solution
- Step 1: Write the proportion equation
989,336 : 1,365,283.68 = 559,606.88 : x - Step 2: Convert to fraction form
989,336/1,365,283.68 = 559,606.88/x - Step 3: Cross multiply
989,336x = 1,365,283.68 × 559,606.88 - Step 4: Simplify right side
989,336x = 764,022,140,479.72 - Step 5: Solve for x
x = 764,022,140,479.72/989,336 - Step 6: Final answer
x = 772,257.49
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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.