Finding the Fourth Proportional to 1,119,025.48, 1,677,342.99 and 638,218.12
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Solution
The fourth proportional to 1,119,025.48, 1,677,342.99 and 638,218.12 is: 956,645.50
Step by Step Solution
- Step 1: Write the proportion equation
1,119,025.48 : 1,677,342.99 = 638,218.12 : x - Step 2: Convert to fraction form
1,119,025.48/1,677,342.99 = 638,218.12/x - Step 3: Cross multiply
1,119,025.48x = 1,677,342.99 × 638,218.12 - Step 4: Simplify right side
1,119,025.48x = 1,070,510,689,672.98 - Step 5: Solve for x
x = 1,070,510,689,672.98/1,119,025.48 - Step 6: Final answer
x = 956,645.50
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1.5x scale
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.