Finding the Fourth Proportional to 1,201,585.41, 1,658,229.96 and 657,721.55
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Solution
The fourth proportional to 1,201,585.41, 1,658,229.96 and 657,721.55 is: 907,678.77
Step by Step Solution
- Step 1: Write the proportion equation
1,201,585.41 : 1,658,229.96 = 657,721.55 : x - Step 2: Convert to fraction form
1,201,585.41/1,658,229.96 = 657,721.55/x - Step 3: Cross multiply
1,201,585.41x = 1,658,229.96 × 657,721.55 - Step 4: Simplify right side
1,201,585.41x = 1,090,653,571,256.49 - Step 5: Solve for x
x = 1,090,653,571,256.49/1,201,585.41 - Step 6: Final answer
x = 907,678.77
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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.