Finding the Fourth Proportional to 1,201,686.10, 1,658,331.39 and 657,872.49
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Solution
The fourth proportional to 1,201,686.10, 1,658,331.39 and 657,872.49 is: 907,866.54
Step by Step Solution
- Step 1: Write the proportion equation
1,201,686.10 : 1,658,331.39 = 657,872.49 : x - Step 2: Convert to fraction form
1,201,686.10/1,658,331.39 = 657,872.49/x - Step 3: Cross multiply
1,201,686.10x = 1,658,331.39 × 657,872.49 - Step 4: Simplify right side
1,201,686.10x = 1,090,970,600,784.46 - Step 5: Solve for x
x = 1,090,970,600,784.46/1,201,686.10 - Step 6: Final answer
x = 907,866.54
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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.