Finding the Fourth Proportional to 1,326,252.21, 1,830,228.06 and 722,640.21
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Solution
The fourth proportional to 1,326,252.21, 1,830,228.06 and 722,640.21 is: 997,243.50
Step by Step Solution
- Step 1: Write the proportion equation
1,326,252.21 : 1,830,228.06 = 722,640.21 : x - Step 2: Convert to fraction form
1,326,252.21/1,830,228.06 = 722,640.21/x - Step 3: Cross multiply
1,326,252.21x = 1,830,228.06 × 722,640.21 - Step 4: Simplify right side
1,326,252.21x = 1,322,596,389,626.29 - Step 5: Solve for x
x = 1,322,596,389,626.29/1,326,252.21 - Step 6: Final answer
x = 997,243.50
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1.5x scale
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.