Finding the Fourth Proportional to 1,918,107.32, 2,646,799.60 and 1,058,612.08
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Solution
The fourth proportional to 1,918,107.32, 2,646,799.60 and 1,058,612.08 is: 1,460,780.64
Step by Step Solution
- Step 1: Write the proportion equation
1,918,107.32 : 2,646,799.60 = 1,058,612.08 : x - Step 2: Convert to fraction form
1,918,107.32/2,646,799.60 = 1,058,612.08/x - Step 3: Cross multiply
1,918,107.32x = 2,646,799.60 × 1,058,612.08 - Step 4: Simplify right side
1,918,107.32x = 2,801,934,029,899.17 - Step 5: Solve for x
x = 2,801,934,029,899.17/1,918,107.32 - Step 6: Final answer
x = 1,460,780.64
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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.