Finding the Fourth Proportional to 989,475.49, 1,365,478.79 and 536,766.49
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Solution
The fourth proportional to 989,475.49, 1,365,478.79 and 536,766.49 is: 740,739.17
Step by Step Solution
- Step 1: Write the proportion equation
989,475.49 : 1,365,478.79 = 536,766.49 : x - Step 2: Convert to fraction form
989,475.49/1,365,478.79 = 536,766.49/x - Step 3: Cross multiply
989,475.49x = 1,365,478.79 × 536,766.49 - Step 4: Simplify right side
989,475.49x = 732,943,247,766.52 - Step 5: Solve for x
x = 732,943,247,766.52/989,475.49 - Step 6: Final answer
x = 740,739.17
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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.