Finding the Fourth Proportional to 626,403.92, 939,299.70 and 436,955.05
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Solution
The fourth proportional to 626,403.92, 939,299.70 and 436,955.05 is: 655,218.99
Step by Step Solution
- Step 1: Write the proportion equation
626,403.92 : 939,299.70 = 436,955.05 : x - Step 2: Convert to fraction form
626,403.92/939,299.70 = 436,955.05/x - Step 3: Cross multiply
626,403.92x = 939,299.70 × 436,955.05 - Step 4: Simplify right side
626,403.92x = 410,431,742,681.99 - Step 5: Solve for x
x = 410,431,742,681.99/626,403.92 - Step 6: Final answer
x = 655,218.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.