Finding the Fourth Proportional to 752,739.99, 1,038,782.22 and 408,575.97
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Solution
The fourth proportional to 752,739.99, 1,038,782.22 and 408,575.97 is: 563,835.40
Step by Step Solution
- Step 1: Write the proportion equation
752,739.99 : 1,038,782.22 = 408,575.97 : x - Step 2: Convert to fraction form
752,739.99/1,038,782.22 = 408,575.97/x - Step 3: Cross multiply
752,739.99x = 1,038,782.22 × 408,575.97 - Step 4: Simplify right side
752,739.99x = 424,421,453,155.25 - Step 5: Solve for x
x = 424,421,453,155.25/752,739.99 - Step 6: Final answer
x = 563,835.40
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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.