Finding the Fourth Proportional to 1,261,573.99, 1,740,972.29 and 688,614.21
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Solution
The fourth proportional to 1,261,573.99, 1,740,972.29 and 688,614.21 is: 950,287.71
Step by Step Solution
- Step 1: Write the proportion equation
1,261,573.99 : 1,740,972.29 = 688,614.21 : x - Step 2: Convert to fraction form
1,261,573.99/1,740,972.29 = 688,614.21/x - Step 3: Cross multiply
1,261,573.99x = 1,740,972.29 × 688,614.21 - Step 4: Simplify right side
1,261,573.99x = 1,198,858,254,667.17 - Step 5: Solve for x
x = 1,198,858,254,667.17/1,261,573.99 - Step 6: Final answer
x = 950,287.71
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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.