Finding the Fourth Proportional to 1,918,129.39, 2,646,830.10 and 1,058,634.29
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Solution
The fourth proportional to 1,918,129.39, 2,646,830.10 and 1,058,634.29 is: 1,460,811.31
Step by Step Solution
- Step 1: Write the proportion equation
1,918,129.39 : 2,646,830.10 = 1,058,634.29 : x - Step 2: Convert to fraction form
1,918,129.39/2,646,830.10 = 1,058,634.29/x - Step 3: Cross multiply
1,918,129.39x = 2,646,830.10 × 1,058,634.29 - Step 4: Simplify right side
1,918,129.39x = 2,802,025,103,664.13 - Step 5: Solve for x
x = 2,802,025,103,664.13/1,918,129.39 - Step 6: Final answer
x = 1,460,811.31
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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.