Finding the Fourth Proportional to 907,497.80, 1,361,246.70 and 781,526.60
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Solution
The fourth proportional to 907,497.80, 1,361,246.70 and 781,526.60 is: 1,172,289.90
Step by Step Solution
- Step 1: Write the proportion equation
907,497.80 : 1,361,246.70 = 781,526.60 : x - Step 2: Convert to fraction form
907,497.80/1,361,246.70 = 781,526.60/x - Step 3: Cross multiply
907,497.80x = 1,361,246.70 × 781,526.60 - Step 4: Simplify right side
907,497.80x = 1,063,850,505,212.22 - Step 5: Solve for x
x = 1,063,850,505,212.22/907,497.80 - Step 6: Final answer
x = 1,172,289.90
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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.