Finding the Fourth Proportional to 1,168,437.09, 1,612,448.06 and 631,893.09
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Solution
The fourth proportional to 1,168,437.09, 1,612,448.06 and 631,893.09 is: 872,015.10
Step by Step Solution
- Step 1: Write the proportion equation
1,168,437.09 : 1,612,448.06 = 631,893.09 : x - Step 2: Convert to fraction form
1,168,437.09/1,612,448.06 = 631,893.09/x - Step 3: Cross multiply
1,168,437.09x = 1,612,448.06 × 631,893.09 - Step 4: Simplify right side
1,168,437.09x = 1,018,894,789,985.12 - Step 5: Solve for x
x = 1,018,894,789,985.12/1,168,437.09 - Step 6: Final answer
x = 872,015.10
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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.