Finding the Fourth Proportional to 907,531.30, 1,361,296.95 and 765,813.70
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Solution
The fourth proportional to 907,531.30, 1,361,296.95 and 765,813.70 is: 1,148,720.55
Step by Step Solution
- Step 1: Write the proportion equation
907,531.30 : 1,361,296.95 = 765,813.70 : x - Step 2: Convert to fraction form
907,531.30/1,361,296.95 = 765,813.70/x - Step 3: Cross multiply
907,531.30x = 1,361,296.95 × 765,813.70 - Step 4: Simplify right side
907,531.30x = 1,042,499,854,078.21 - Step 5: Solve for x
x = 1,042,499,854,078.21/907,531.30 - Step 6: Final answer
x = 1,148,720.55
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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.