Finding the Fourth Proportional to 1,005,419.99, 1,507,280.37 and 436,370.79
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Solution
The fourth proportional to 1,005,419.99, 1,507,280.37 and 436,370.79 is: 654,187.44
Step by Step Solution
- Step 1: Write the proportion equation
1,005,419.99 : 1,507,280.37 = 436,370.79 : x - Step 2: Convert to fraction form
1,005,419.99/1,507,280.37 = 436,370.79/x - Step 3: Cross multiply
1,005,419.99x = 1,507,280.37 × 436,370.79 - Step 4: Simplify right side
1,005,419.99x = 657,733,125,808.39 - Step 5: Solve for x
x = 657,733,125,808.39/1,005,419.99 - Step 6: Final answer
x = 654,187.44
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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.