Finding the Fourth Proportional to 989,440.19, 1,365,427.94 and 559,711.19
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Solution
The fourth proportional to 989,440.19, 1,365,427.94 and 559,711.19 is: 772,401.71
Step by Step Solution
- Step 1: Write the proportion equation
989,440.19 : 1,365,427.94 = 559,711.19 : x - Step 2: Convert to fraction form
989,440.19/1,365,427.94 = 559,711.19/x - Step 3: Cross multiply
989,440.19x = 1,365,427.94 × 559,711.19 - Step 4: Simplify right side
989,440.19x = 764,245,294,358.09 - Step 5: Solve for x
x = 764,245,294,358.09/989,440.19 - Step 6: Final answer
x = 772,401.71
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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.