Finding the Fourth Proportional to 1,293,490.99, 1,785,072.80 and 720,531.55
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Solution
The fourth proportional to 1,293,490.99, 1,785,072.80 and 720,531.55 is: 994,364.31
Step by Step Solution
- Step 1: Write the proportion equation
1,293,490.99 : 1,785,072.80 = 720,531.55 : x - Step 2: Convert to fraction form
1,293,490.99/1,785,072.80 = 720,531.55/x - Step 3: Cross multiply
1,293,490.99x = 1,785,072.80 × 720,531.55 - Step 4: Simplify right side
1,293,490.99x = 1,286,201,271,446.84 - Step 5: Solve for x
x = 1,286,201,271,446.84/1,293,490.99 - Step 6: Final answer
x = 994,364.31
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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.