Finding the Fourth Proportional to 861,510.63, 1,292,458.68 and 262,518.67
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Solution
The fourth proportional to 861,510.63, 1,292,458.68 and 262,518.67 is: 393,836.74
Step by Step Solution
- Step 1: Write the proportion equation
861,510.63 : 1,292,458.68 = 262,518.67 : x - Step 2: Convert to fraction form
861,510.63/1,292,458.68 = 262,518.67/x - Step 3: Cross multiply
861,510.63x = 1,292,458.68 × 262,518.67 - Step 4: Simplify right side
861,510.63x = 339,294,535,319.13 - Step 5: Solve for x
x = 339,294,535,319.13/861,510.63 - Step 6: Final answer
x = 393,836.74
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1.5x scale
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.