Finding the Fourth Proportional to 1,477,574.79, 2,219,512.49 and 1,391,187.09
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Solution
The fourth proportional to 1,477,574.79, 2,219,512.49 and 1,391,187.09 is: 2,089,746.75
Step by Step Solution
- Step 1: Write the proportion equation
1,477,574.79 : 2,219,512.49 = 1,391,187.09 : x - Step 2: Convert to fraction form
1,477,574.79/2,219,512.49 = 1,391,187.09/x - Step 3: Cross multiply
1,477,574.79x = 2,219,512.49 × 1,391,187.09 - Step 4: Simplify right side
1,477,574.79x = 3,087,757,115,225.82 - Step 5: Solve for x
x = 3,087,757,115,225.82/1,477,574.79 - Step 6: Final answer
x = 2,089,746.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.