Finding the Fourth Proportional to 939,235.40, 1,296,147.35 and 509,515.53
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Solution
The fourth proportional to 939,235.40, 1,296,147.35 and 509,515.53 is: 703,132.79
Step by Step Solution
- Step 1: Write the proportion equation
939,235.40 : 1,296,147.35 = 509,515.53 : x - Step 2: Convert to fraction form
939,235.40/1,296,147.35 = 509,515.53/x - Step 3: Cross multiply
939,235.40x = 1,296,147.35 × 509,515.53 - Step 4: Simplify right side
939,235.40x = 660,407,203,993.35 - Step 5: Solve for x
x = 660,407,203,993.35/939,235.40 - Step 6: Final answer
x = 703,132.79
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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.